Home / 3,935.68-5,431.50-2,363.80

Finding the Fourth Proportional to 3,935.68, 5,431.50 and 2,363.80

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Solution

The fourth proportional to 3,935.68, 5,431.50 and 2,363.80 is: 3,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.68 : 5,431.50 = 2,363.80 : x
  2. Step 2: Convert to fraction form
    3,935.68/5,431.50 = 2,363.80/x
  3. Step 3: Cross multiply
    3,935.68x = 5,431.50 × 2,363.80
  4. Step 4: Simplify right side
    3,935.68x = 12,838,979.70
  5. Step 5: Solve for x
    x = 12,838,979.70/3,935.68
  6. Step 6: Final answer
    x = 3,262.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.