Home / 3,142.60-4,338.38-2,432.84

Finding the Fourth Proportional to 3,142.60, 4,338.38 and 2,432.84

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Solution

The fourth proportional to 3,142.60, 4,338.38 and 2,432.84 is: 3,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.60 : 4,338.38 = 2,432.84 : x
  2. Step 2: Convert to fraction form
    3,142.60/4,338.38 = 2,432.84/x
  3. Step 3: Cross multiply
    3,142.60x = 4,338.38 × 2,432.84
  4. Step 4: Simplify right side
    3,142.60x = 10,554,568.79
  5. Step 5: Solve for x
    x = 10,554,568.79/3,142.60
  6. Step 6: Final answer
    x = 3,358.55

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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.