Home / 7,540.20-11,314.71-3,157.29

Finding the Fourth Proportional to 7,540.20, 11,314.71 and 3,157.29

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Solution

The fourth proportional to 7,540.20, 11,314.71 and 3,157.29 is: 4,737.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.20 : 11,314.71 = 3,157.29 : x
  2. Step 2: Convert to fraction form
    7,540.20/11,314.71 = 3,157.29/x
  3. Step 3: Cross multiply
    7,540.20x = 11,314.71 × 3,157.29
  4. Step 4: Simplify right side
    7,540.20x = 35,723,820.74
  5. Step 5: Solve for x
    x = 35,723,820.74/7,540.20
  6. Step 6: Final answer
    x = 4,737.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.