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Finding the Fourth Proportional to 1,294.82, 1,941.13 and 472.61

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Solution

The fourth proportional to 1,294.82, 1,941.13 and 472.61 is: 708.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.82 : 1,941.13 = 472.61 : x
  2. Step 2: Convert to fraction form
    1,294.82/1,941.13 = 472.61/x
  3. Step 3: Cross multiply
    1,294.82x = 1,941.13 × 472.61
  4. Step 4: Simplify right side
    1,294.82x = 917,402.89
  5. Step 5: Solve for x
    x = 917,402.89/1,294.82
  6. Step 6: Final answer
    x = 708.52

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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.