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Finding the Fourth Proportional to 937.20, 1,293.22 and 674.76

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Solution

The fourth proportional to 937.20, 1,293.22 and 674.76 is: 931.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.20 : 1,293.22 = 674.76 : x
  2. Step 2: Convert to fraction form
    937.20/1,293.22 = 674.76/x
  3. Step 3: Cross multiply
    937.20x = 1,293.22 × 674.76
  4. Step 4: Simplify right side
    937.20x = 872,613.13
  5. Step 5: Solve for x
    x = 872,613.13/937.20
  6. Step 6: Final answer
    x = 931.09

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.