Home / 5,138.52-7,708.88-1,676.04

Finding the Fourth Proportional to 5,138.52, 7,708.88 and 1,676.04

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Solution

The fourth proportional to 5,138.52, 7,708.88 and 1,676.04 is: 2,514.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.52 : 7,708.88 = 1,676.04 : x
  2. Step 2: Convert to fraction form
    5,138.52/7,708.88 = 1,676.04/x
  3. Step 3: Cross multiply
    5,138.52x = 7,708.88 × 1,676.04
  4. Step 4: Simplify right side
    5,138.52x = 12,920,391.24
  5. Step 5: Solve for x
    x = 12,920,391.24/5,138.52
  6. Step 6: Final answer
    x = 2,514.42

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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.