Home / 2,092.24-3,138.86-631.30

Finding the Fourth Proportional to 2,092.24, 3,138.86 and 631.30

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Solution

The fourth proportional to 2,092.24, 3,138.86 and 631.30 is: 947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.24 : 3,138.86 = 631.30 : x
  2. Step 2: Convert to fraction form
    2,092.24/3,138.86 = 631.30/x
  3. Step 3: Cross multiply
    2,092.24x = 3,138.86 × 631.30
  4. Step 4: Simplify right side
    2,092.24x = 1,981,562.32
  5. Step 5: Solve for x
    x = 1,981,562.32/2,092.24
  6. Step 6: Final answer
    x = 947.10

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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.