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Finding the Fourth Proportional to 1,526.88, 2,290.32 and 472.71

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Solution

The fourth proportional to 1,526.88, 2,290.32 and 472.71 is: 709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.88 : 2,290.32 = 472.71 : x
  2. Step 2: Convert to fraction form
    1,526.88/2,290.32 = 472.71/x
  3. Step 3: Cross multiply
    1,526.88x = 2,290.32 × 472.71
  4. Step 4: Simplify right side
    1,526.88x = 1,082,657.17
  5. Step 5: Solve for x
    x = 1,082,657.17/1,526.88
  6. Step 6: Final answer
    x = 709.07

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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.