Home / 5,487.40-7,573.16-3,129.52

Finding the Fourth Proportional to 5,487.40, 7,573.16 and 3,129.52

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Solution

The fourth proportional to 5,487.40, 7,573.16 and 3,129.52 is: 4,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.40 : 7,573.16 = 3,129.52 : x
  2. Step 2: Convert to fraction form
    5,487.40/7,573.16 = 3,129.52/x
  3. Step 3: Cross multiply
    5,487.40x = 7,573.16 × 3,129.52
  4. Step 4: Simplify right side
    5,487.40x = 23,700,355.68
  5. Step 5: Solve for x
    x = 23,700,355.68/5,487.40
  6. Step 6: Final answer
    x = 4,319.05

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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.