Home / 3,432.05-5,147.28-2,045.78

Finding the Fourth Proportional to 3,432.05, 5,147.28 and 2,045.78

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Solution

The fourth proportional to 3,432.05, 5,147.28 and 2,045.78 is: 3,068.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.05 : 5,147.28 = 2,045.78 : x
  2. Step 2: Convert to fraction form
    3,432.05/5,147.28 = 2,045.78/x
  3. Step 3: Cross multiply
    3,432.05x = 5,147.28 × 2,045.78
  4. Step 4: Simplify right side
    3,432.05x = 10,530,176.74
  5. Step 5: Solve for x
    x = 10,530,176.74/3,432.05
  6. Step 6: Final answer
    x = 3,068.19

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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.