Home / 3,225.32-4,839.10-1,687.40

Finding the Fourth Proportional to 3,225.32, 4,839.10 and 1,687.40

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Solution

The fourth proportional to 3,225.32, 4,839.10 and 1,687.40 is: 2,531.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.32 : 4,839.10 = 1,687.40 : x
  2. Step 2: Convert to fraction form
    3,225.32/4,839.10 = 1,687.40/x
  3. Step 3: Cross multiply
    3,225.32x = 4,839.10 × 1,687.40
  4. Step 4: Simplify right side
    3,225.32x = 8,165,497.34
  5. Step 5: Solve for x
    x = 8,165,497.34/3,225.32
  6. Step 6: Final answer
    x = 2,531.69

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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.