Home / 7,337.87-10,126.21-3,980.61

Finding the Fourth Proportional to 7,337.87, 10,126.21 and 3,980.61

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Solution

The fourth proportional to 7,337.87, 10,126.21 and 3,980.61 is: 5,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,337.87 : 10,126.21 = 3,980.61 : x
  2. Step 2: Convert to fraction form
    7,337.87/10,126.21 = 3,980.61/x
  3. Step 3: Cross multiply
    7,337.87x = 10,126.21 × 3,980.61
  4. Step 4: Simplify right side
    7,337.87x = 40,308,472.89
  5. Step 5: Solve for x
    x = 40,308,472.89/7,337.87
  6. Step 6: Final answer
    x = 5,493.21

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Double scale
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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.