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Finding the Fourth Proportional to 1,164.98, 1,747.84 and 434.66

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Solution

The fourth proportional to 1,164.98, 1,747.84 and 434.66 is: 652.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.98 : 1,747.84 = 434.66 : x
  2. Step 2: Convert to fraction form
    1,164.98/1,747.84 = 434.66/x
  3. Step 3: Cross multiply
    1,164.98x = 1,747.84 × 434.66
  4. Step 4: Simplify right side
    1,164.98x = 759,716.13
  5. Step 5: Solve for x
    x = 759,716.13/1,164.98
  6. Step 6: Final answer
    x = 652.13

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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.