Home / 2,456.80-3,684.16-724.96

Finding the Fourth Proportional to 2,456.80, 3,684.16 and 724.96

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Solution

The fourth proportional to 2,456.80, 3,684.16 and 724.96 is: 1,087.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.80 : 3,684.16 = 724.96 : x
  2. Step 2: Convert to fraction form
    2,456.80/3,684.16 = 724.96/x
  3. Step 3: Cross multiply
    2,456.80x = 3,684.16 × 724.96
  4. Step 4: Simplify right side
    2,456.80x = 2,670,868.63
  5. Step 5: Solve for x
    x = 2,670,868.63/2,456.80
  6. Step 6: Final answer
    x = 1,087.13

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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.