Home / 3,973.91-5,475.15-2,909.87

Finding the Fourth Proportional to 3,973.91, 5,475.15 and 2,909.87

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Solution

The fourth proportional to 3,973.91, 5,475.15 and 2,909.87 is: 4,009.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.91 : 5,475.15 = 2,909.87 : x
  2. Step 2: Convert to fraction form
    3,973.91/5,475.15 = 2,909.87/x
  3. Step 3: Cross multiply
    3,973.91x = 5,475.15 × 2,909.87
  4. Step 4: Simplify right side
    3,973.91x = 15,931,974.73
  5. Step 5: Solve for x
    x = 15,931,974.73/3,973.91
  6. Step 6: Final answer
    x = 4,009.14

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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.