Home / 8,240.39-12,358.03-2,974.72

Finding the Fourth Proportional to 8,240.39, 12,358.03 and 2,974.72

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Solution

The fourth proportional to 8,240.39, 12,358.03 and 2,974.72 is: 4,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.39 : 12,358.03 = 2,974.72 : x
  2. Step 2: Convert to fraction form
    8,240.39/12,358.03 = 2,974.72/x
  3. Step 3: Cross multiply
    8,240.39x = 12,358.03 × 2,974.72
  4. Step 4: Simplify right side
    8,240.39x = 36,761,679.00
  5. Step 5: Solve for x
    x = 36,761,679.00/8,240.39
  6. Step 6: Final answer
    x = 4,461.16

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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.