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Finding the Fourth Proportional to 1,152.91, 1,729.18 and 567.75

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Solution

The fourth proportional to 1,152.91, 1,729.18 and 567.75 is: 851.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152.91 : 1,729.18 = 567.75 : x
  2. Step 2: Convert to fraction form
    1,152.91/1,729.18 = 567.75/x
  3. Step 3: Cross multiply
    1,152.91x = 1,729.18 × 567.75
  4. Step 4: Simplify right side
    1,152.91x = 981,744.28
  5. Step 5: Solve for x
    x = 981,744.28/1,152.91
  6. Step 6: Final answer
    x = 851.54

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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.