Home / 2,455.68-3,679.44-1,479.78

Finding the Fourth Proportional to 2,455.68, 3,679.44 and 1,479.78

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Solution

The fourth proportional to 2,455.68, 3,679.44 and 1,479.78 is: 2,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.68 : 3,679.44 = 1,479.78 : x
  2. Step 2: Convert to fraction form
    2,455.68/3,679.44 = 1,479.78/x
  3. Step 3: Cross multiply
    2,455.68x = 3,679.44 × 1,479.78
  4. Step 4: Simplify right side
    2,455.68x = 5,444,761.72
  5. Step 5: Solve for x
    x = 5,444,761.72/2,455.68
  6. Step 6: Final answer
    x = 2,217.21

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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.