Home / 3,432.60-5,145.12-1,350.72

Finding the Fourth Proportional to 3,432.60, 5,145.12 and 1,350.72

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Solution

The fourth proportional to 3,432.60, 5,145.12 and 1,350.72 is: 2,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.60 : 5,145.12 = 1,350.72 : x
  2. Step 2: Convert to fraction form
    3,432.60/5,145.12 = 1,350.72/x
  3. Step 3: Cross multiply
    3,432.60x = 5,145.12 × 1,350.72
  4. Step 4: Simplify right side
    3,432.60x = 6,949,616.49
  5. Step 5: Solve for x
    x = 6,949,616.49/3,432.60
  6. Step 6: Final answer
    x = 2,024.59

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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.