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Finding the Fourth Proportional to 1,088.29, 1,631.00 and 503.21

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Solution

The fourth proportional to 1,088.29, 1,631.00 and 503.21 is: 754.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.29 : 1,631.00 = 503.21 : x
  2. Step 2: Convert to fraction form
    1,088.29/1,631.00 = 503.21/x
  3. Step 3: Cross multiply
    1,088.29x = 1,631.00 × 503.21
  4. Step 4: Simplify right side
    1,088.29x = 820,740.85
  5. Step 5: Solve for x
    x = 820,740.85/1,088.29
  6. Step 6: Final answer
    x = 754.16

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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.