Home / 3,966.20-5,944.98-1,655

Finding the Fourth Proportional to 3,966.20, 5,944.98 and 1,655

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Solution

The fourth proportional to 3,966.20, 5,944.98 and 1,655 is: 2,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.20 : 5,944.98 = 1,655 : x
  2. Step 2: Convert to fraction form
    3,966.20/5,944.98 = 1,655/x
  3. Step 3: Cross multiply
    3,966.20x = 5,944.98 × 1,655
  4. Step 4: Simplify right side
    3,966.20x = 9,838,941.90
  5. Step 5: Solve for x
    x = 9,838,941.90/3,966.20
  6. Step 6: Final answer
    x = 2,480.70

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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.