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Finding the Fourth Proportional to 2,092.44, 3,139.38 and 631.92

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Solution

The fourth proportional to 2,092.44, 3,139.38 and 631.92 is: 948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.44 : 3,139.38 = 631.92 : x
  2. Step 2: Convert to fraction form
    2,092.44/3,139.38 = 631.92/x
  3. Step 3: Cross multiply
    2,092.44x = 3,139.38 × 631.92
  4. Step 4: Simplify right side
    2,092.44x = 1,983,837.01
  5. Step 5: Solve for x
    x = 1,983,837.01/2,092.44
  6. Step 6: Final answer
    x = 948.10

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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.