Home / 3,390.40-5,073.24-2,799.91

Finding the Fourth Proportional to 3,390.40, 5,073.24 and 2,799.91

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Solution

The fourth proportional to 3,390.40, 5,073.24 and 2,799.91 is: 4,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.40 : 5,073.24 = 2,799.91 : x
  2. Step 2: Convert to fraction form
    3,390.40/5,073.24 = 2,799.91/x
  3. Step 3: Cross multiply
    3,390.40x = 5,073.24 × 2,799.91
  4. Step 4: Simplify right side
    3,390.40x = 14,204,615.41
  5. Step 5: Solve for x
    x = 14,204,615.41/3,390.40
  6. Step 6: Final answer
    x = 4,189.66

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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.