Home / 3,432.44-5,145.78-1,381.88

Finding the Fourth Proportional to 3,432.44, 5,145.78 and 1,381.88

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Solution

The fourth proportional to 3,432.44, 5,145.78 and 1,381.88 is: 2,071.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.44 : 5,145.78 = 1,381.88 : x
  2. Step 2: Convert to fraction form
    3,432.44/5,145.78 = 1,381.88/x
  3. Step 3: Cross multiply
    3,432.44x = 5,145.78 × 1,381.88
  4. Step 4: Simplify right side
    3,432.44x = 7,110,850.47
  5. Step 5: Solve for x
    x = 7,110,850.47/3,432.44
  6. Step 6: Final answer
    x = 2,071.66

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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.