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Finding the Fourth Proportional to 5,711.06, 8,549.31 and 5,279.06

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Solution

The fourth proportional to 5,711.06, 8,549.31 and 5,279.06 is: 7,902.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,711.06 : 8,549.31 = 5,279.06 : x
  2. Step 2: Convert to fraction form
    5,711.06/8,549.31 = 5,279.06/x
  3. Step 3: Cross multiply
    5,711.06x = 8,549.31 × 5,279.06
  4. Step 4: Simplify right side
    5,711.06x = 45,132,320.45
  5. Step 5: Solve for x
    x = 45,132,320.45/5,711.06
  6. Step 6: Final answer
    x = 7,902.62

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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.