Home / 7,515.19-10,370.91-4,157.80

Finding the Fourth Proportional to 7,515.19, 10,370.91 and 4,157.80

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Solution

The fourth proportional to 7,515.19, 10,370.91 and 4,157.80 is: 5,737.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.19 : 10,370.91 = 4,157.80 : x
  2. Step 2: Convert to fraction form
    7,515.19/10,370.91 = 4,157.80/x
  3. Step 3: Cross multiply
    7,515.19x = 10,370.91 × 4,157.80
  4. Step 4: Simplify right side
    7,515.19x = 43,120,159.26
  5. Step 5: Solve for x
    x = 43,120,159.26/7,515.19
  6. Step 6: Final answer
    x = 5,737.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.