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Finding the Fourth Proportional to 1,142.88, 1,714.48 and 595.12

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Solution

The fourth proportional to 1,142.88, 1,714.48 and 595.12 is: 892.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142.88 : 1,714.48 = 595.12 : x
  2. Step 2: Convert to fraction form
    1,142.88/1,714.48 = 595.12/x
  3. Step 3: Cross multiply
    1,142.88x = 1,714.48 × 595.12
  4. Step 4: Simplify right side
    1,142.88x = 1,020,321.34
  5. Step 5: Solve for x
    x = 1,020,321.34/1,142.88
  6. Step 6: Final answer
    x = 892.76

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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.