Jack enlarged a picture proportionally .. His original picture is 4cm wide and 6cm long. If the new , larger picture is 10cm wide, what is its length?
10/4 = 2.5
2.5 * 6 = ?
than u , understood.
You're welcome. :-)
To find the length of the new picture, we can use the concept of proportional reasoning.
Here's how we can solve this problem step by step:
1. Calculate the scale factor using the original and new widths:
The scale factor is determined by dividing the new width (10cm) by the original width (4cm):
Scale factor = New width / Original width = 10cm / 4cm = 2.5
2. Apply the scale factor to the original length:
Multiply the original length (6cm) by the scale factor:
New length = Original length x Scale factor = 6cm x 2.5 = 15cm
Therefore, the length of the new, larger picture is 15cm.