Home / 5,129.80-7,686.50-3,044.86

Finding the Fourth Proportional to 5,129.80, 7,686.50 and 3,044.86

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Solution

The fourth proportional to 5,129.80, 7,686.50 and 3,044.86 is: 4,562.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.80 : 7,686.50 = 3,044.86 : x
  2. Step 2: Convert to fraction form
    5,129.80/7,686.50 = 3,044.86/x
  3. Step 3: Cross multiply
    5,129.80x = 7,686.50 × 3,044.86
  4. Step 4: Simplify right side
    5,129.80x = 23,404,281.95
  5. Step 5: Solve for x
    x = 23,404,281.95/5,129.80
  6. Step 6: Final answer
    x = 4,562.42

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1.5x scale

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.