Home / 3,981.68-5,973.96-1,671.92

Finding the Fourth Proportional to 3,981.68, 5,973.96 and 1,671.92

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Solution

The fourth proportional to 3,981.68, 5,973.96 and 1,671.92 is: 2,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.68 : 5,973.96 = 1,671.92 : x
  2. Step 2: Convert to fraction form
    3,981.68/5,973.96 = 1,671.92/x
  3. Step 3: Cross multiply
    3,981.68x = 5,973.96 × 1,671.92
  4. Step 4: Simplify right side
    3,981.68x = 9,987,983.20
  5. Step 5: Solve for x
    x = 9,987,983.20/3,981.68
  6. Step 6: Final answer
    x = 2,508.48

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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.