Home / 3,930.71-5,426.01-2,358.50

Finding the Fourth Proportional to 3,930.71, 5,426.01 and 2,358.50

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Solution

The fourth proportional to 3,930.71, 5,426.01 and 2,358.50 is: 3,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.71 : 5,426.01 = 2,358.50 : x
  2. Step 2: Convert to fraction form
    3,930.71/5,426.01 = 2,358.50/x
  3. Step 3: Cross multiply
    3,930.71x = 5,426.01 × 2,358.50
  4. Step 4: Simplify right side
    3,930.71x = 12,797,232.79
  5. Step 5: Solve for x
    x = 12,797,232.79/3,930.71
  6. Step 6: Final answer
    x = 3,255.71

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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.