Home / 2,425.28-3,634.68-1,123.88

Finding the Fourth Proportional to 2,425.28, 3,634.68 and 1,123.88

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Solution

The fourth proportional to 2,425.28, 3,634.68 and 1,123.88 is: 1,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.28 : 3,634.68 = 1,123.88 : x
  2. Step 2: Convert to fraction form
    2,425.28/3,634.68 = 1,123.88/x
  3. Step 3: Cross multiply
    2,425.28x = 3,634.68 × 1,123.88
  4. Step 4: Simplify right side
    2,425.28x = 4,084,944.16
  5. Step 5: Solve for x
    x = 4,084,944.16/2,425.28
  6. Step 6: Final answer
    x = 1,684.32

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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.