Home / 3,125.28-4,306.94-2,239.55

Finding the Fourth Proportional to 3,125.28, 4,306.94 and 2,239.55

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Solution

The fourth proportional to 3,125.28, 4,306.94 and 2,239.55 is: 3,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.28 : 4,306.94 = 2,239.55 : x
  2. Step 2: Convert to fraction form
    3,125.28/4,306.94 = 2,239.55/x
  3. Step 3: Cross multiply
    3,125.28x = 4,306.94 × 2,239.55
  4. Step 4: Simplify right side
    3,125.28x = 9,645,607.48
  5. Step 5: Solve for x
    x = 9,645,607.48/3,125.28
  6. Step 6: Final answer
    x = 3,086.32

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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.