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Finding the Fourth Proportional to 837.27, 1,152.85 and 743.85

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Solution

The fourth proportional to 837.27, 1,152.85 and 743.85 is: 1,024.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.27 : 1,152.85 = 743.85 : x
  2. Step 2: Convert to fraction form
    837.27/1,152.85 = 743.85/x
  3. Step 3: Cross multiply
    837.27x = 1,152.85 × 743.85
  4. Step 4: Simplify right side
    837.27x = 857,547.47
  5. Step 5: Solve for x
    x = 857,547.47/837.27
  6. Step 6: Final answer
    x = 1,024.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.