Home / 2,717.80-4,079.40-1,332.70

Finding the Fourth Proportional to 2,717.80, 4,079.40 and 1,332.70

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Solution

The fourth proportional to 2,717.80, 4,079.40 and 1,332.70 is: 2,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.80 : 4,079.40 = 1,332.70 : x
  2. Step 2: Convert to fraction form
    2,717.80/4,079.40 = 1,332.70/x
  3. Step 3: Cross multiply
    2,717.80x = 4,079.40 × 1,332.70
  4. Step 4: Simplify right side
    2,717.80x = 5,436,616.38
  5. Step 5: Solve for x
    x = 5,436,616.38/2,717.80
  6. Step 6: Final answer
    x = 2,000.37

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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.