Home / 3,456.40-5,187.96-2,470.32

Finding the Fourth Proportional to 3,456.40, 5,187.96 and 2,470.32

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Solution

The fourth proportional to 3,456.40, 5,187.96 and 2,470.32 is: 3,707.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.40 : 5,187.96 = 2,470.32 : x
  2. Step 2: Convert to fraction form
    3,456.40/5,187.96 = 2,470.32/x
  3. Step 3: Cross multiply
    3,456.40x = 5,187.96 × 2,470.32
  4. Step 4: Simplify right side
    3,456.40x = 12,815,921.35
  5. Step 5: Solve for x
    x = 12,815,921.35/3,456.40
  6. Step 6: Final answer
    x = 3,707.88

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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.