Home / 5,177.91-7,765.76-1,479.16

Finding the Fourth Proportional to 5,177.91, 7,765.76 and 1,479.16

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Solution

The fourth proportional to 5,177.91, 7,765.76 and 1,479.16 is: 2,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.91 : 7,765.76 = 1,479.16 : x
  2. Step 2: Convert to fraction form
    5,177.91/7,765.76 = 1,479.16/x
  3. Step 3: Cross multiply
    5,177.91x = 7,765.76 × 1,479.16
  4. Step 4: Simplify right side
    5,177.91x = 11,486,785.85
  5. Step 5: Solve for x
    x = 11,486,785.85/5,177.91
  6. Step 6: Final answer
    x = 2,218.42

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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.