Home / 3,132.40-4,699.91-1,376.49

Finding the Fourth Proportional to 3,132.40, 4,699.91 and 1,376.49

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Solution

The fourth proportional to 3,132.40, 4,699.91 and 1,376.49 is: 2,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.40 : 4,699.91 = 1,376.49 : x
  2. Step 2: Convert to fraction form
    3,132.40/4,699.91 = 1,376.49/x
  3. Step 3: Cross multiply
    3,132.40x = 4,699.91 × 1,376.49
  4. Step 4: Simplify right side
    3,132.40x = 6,469,398.25
  5. Step 5: Solve for x
    x = 6,469,398.25/3,132.40
  6. Step 6: Final answer
    x = 2,065.32

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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.