Home / 5,176.78-7,766.38-1,479.06

Finding the Fourth Proportional to 5,176.78, 7,766.38 and 1,479.06

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Solution

The fourth proportional to 5,176.78, 7,766.38 and 1,479.06 is: 2,218.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.78 : 7,766.38 = 1,479.06 : x
  2. Step 2: Convert to fraction form
    5,176.78/7,766.38 = 1,479.06/x
  3. Step 3: Cross multiply
    5,176.78x = 7,766.38 × 1,479.06
  4. Step 4: Simplify right side
    5,176.78x = 11,486,943.85
  5. Step 5: Solve for x
    x = 11,486,943.85/5,176.78
  6. Step 6: Final answer
    x = 2,218.94

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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.