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Finding the Fourth Proportional to 837.08, 1,154.76 and 726.40

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Solution

The fourth proportional to 837.08, 1,154.76 and 726.40 is: 1,002.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.08 : 1,154.76 = 726.40 : x
  2. Step 2: Convert to fraction form
    837.08/1,154.76 = 726.40/x
  3. Step 3: Cross multiply
    837.08x = 1,154.76 × 726.40
  4. Step 4: Simplify right side
    837.08x = 838,817.66
  5. Step 5: Solve for x
    x = 838,817.66/837.08
  6. Step 6: Final answer
    x = 1,002.08

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1.5x scale

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.