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Finding the Fourth Proportional to 1,262.98, 1,894.17 and 397.29

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Solution

The fourth proportional to 1,262.98, 1,894.17 and 397.29 is: 595.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.98 : 1,894.17 = 397.29 : x
  2. Step 2: Convert to fraction form
    1,262.98/1,894.17 = 397.29/x
  3. Step 3: Cross multiply
    1,262.98x = 1,894.17 × 397.29
  4. Step 4: Simplify right side
    1,262.98x = 752,534.80
  5. Step 5: Solve for x
    x = 752,534.80/1,262.98
  6. Step 6: Final answer
    x = 595.84

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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.