Home / 3,424.24-5,139.57-1,781.95

Finding the Fourth Proportional to 3,424.24, 5,139.57 and 1,781.95

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Solution

The fourth proportional to 3,424.24, 5,139.57 and 1,781.95 is: 2,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.24 : 5,139.57 = 1,781.95 : x
  2. Step 2: Convert to fraction form
    3,424.24/5,139.57 = 1,781.95/x
  3. Step 3: Cross multiply
    3,424.24x = 5,139.57 × 1,781.95
  4. Step 4: Simplify right side
    3,424.24x = 9,158,456.76
  5. Step 5: Solve for x
    x = 9,158,456.76/3,424.24
  6. Step 6: Final answer
    x = 2,674.60

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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.