Home / 3,983.70-5,974.88-1,061.32

Finding the Fourth Proportional to 3,983.70, 5,974.88 and 1,061.32

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Solution

The fourth proportional to 3,983.70, 5,974.88 and 1,061.32 is: 1,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.70 : 5,974.88 = 1,061.32 : x
  2. Step 2: Convert to fraction form
    3,983.70/5,974.88 = 1,061.32/x
  3. Step 3: Cross multiply
    3,983.70x = 5,974.88 × 1,061.32
  4. Step 4: Simplify right side
    3,983.70x = 6,341,259.64
  5. Step 5: Solve for x
    x = 6,341,259.64/3,983.70
  6. Step 6: Final answer
    x = 1,591.80

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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.