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Finding the Fourth Proportional to 7,306.79, 10,080.98 and 4,471.20

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Solution

The fourth proportional to 7,306.79, 10,080.98 and 4,471.20 is: 6,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,306.79 : 10,080.98 = 4,471.20 : x
  2. Step 2: Convert to fraction form
    7,306.79/10,080.98 = 4,471.20/x
  3. Step 3: Cross multiply
    7,306.79x = 10,080.98 × 4,471.20
  4. Step 4: Simplify right side
    7,306.79x = 45,074,097.34
  5. Step 5: Solve for x
    x = 45,074,097.34/7,306.79
  6. Step 6: Final answer
    x = 6,168.80

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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.