Home / 2,479.48-3,711.66-2,129.56

Finding the Fourth Proportional to 2,479.48, 3,711.66 and 2,129.56

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Solution

The fourth proportional to 2,479.48, 3,711.66 and 2,129.56 is: 3,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.48 : 3,711.66 = 2,129.56 : x
  2. Step 2: Convert to fraction form
    2,479.48/3,711.66 = 2,129.56/x
  3. Step 3: Cross multiply
    2,479.48x = 3,711.66 × 2,129.56
  4. Step 4: Simplify right side
    2,479.48x = 7,904,202.67
  5. Step 5: Solve for x
    x = 7,904,202.67/2,479.48
  6. Step 6: Final answer
    x = 3,187.85

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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.