Home / 2,092.32-3,138.50-631.48

Finding the Fourth Proportional to 2,092.32, 3,138.50 and 631.48

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Solution

The fourth proportional to 2,092.32, 3,138.50 and 631.48 is: 947.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.32 : 3,138.50 = 631.48 : x
  2. Step 2: Convert to fraction form
    2,092.32/3,138.50 = 631.48/x
  3. Step 3: Cross multiply
    2,092.32x = 3,138.50 × 631.48
  4. Step 4: Simplify right side
    2,092.32x = 1,981,899.98
  5. Step 5: Solve for x
    x = 1,981,899.98/2,092.32
  6. Step 6: Final answer
    x = 947.23

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.