Home / 5,131.60-7,687.76-2,933.76

Finding the Fourth Proportional to 5,131.60, 7,687.76 and 2,933.76

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Solution

The fourth proportional to 5,131.60, 7,687.76 and 2,933.76 is: 4,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.60 : 7,687.76 = 2,933.76 : x
  2. Step 2: Convert to fraction form
    5,131.60/7,687.76 = 2,933.76/x
  3. Step 3: Cross multiply
    5,131.60x = 7,687.76 × 2,933.76
  4. Step 4: Simplify right side
    5,131.60x = 22,554,042.78
  5. Step 5: Solve for x
    x = 22,554,042.78/5,131.60
  6. Step 6: Final answer
    x = 4,395.13

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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.