Home / 5,146.78-7,717.20-4,531.72

Finding the Fourth Proportional to 5,146.78, 7,717.20 and 4,531.72

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Solution

The fourth proportional to 5,146.78, 7,717.20 and 4,531.72 is: 6,794.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.78 : 7,717.20 = 4,531.72 : x
  2. Step 2: Convert to fraction form
    5,146.78/7,717.20 = 4,531.72/x
  3. Step 3: Cross multiply
    5,146.78x = 7,717.20 × 4,531.72
  4. Step 4: Simplify right side
    5,146.78x = 34,972,189.58
  5. Step 5: Solve for x
    x = 34,972,189.58/5,146.78
  6. Step 6: Final answer
    x = 6,794.96

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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.