Home / 5,177.85-7,764.99-1,479.09

Finding the Fourth Proportional to 5,177.85, 7,764.99 and 1,479.09

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Solution

The fourth proportional to 5,177.85, 7,764.99 and 1,479.09 is: 2,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.85 : 7,764.99 = 1,479.09 : x
  2. Step 2: Convert to fraction form
    5,177.85/7,764.99 = 1,479.09/x
  3. Step 3: Cross multiply
    5,177.85x = 7,764.99 × 1,479.09
  4. Step 4: Simplify right side
    5,177.85x = 11,485,119.06
  5. Step 5: Solve for x
    x = 11,485,119.06/5,177.85
  6. Step 6: Final answer
    x = 2,218.13

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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.