Home / 3,988.56-5,981.20-1,796.70

Finding the Fourth Proportional to 3,988.56, 5,981.20 and 1,796.70

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Solution

The fourth proportional to 3,988.56, 5,981.20 and 1,796.70 is: 2,694.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.56 : 5,981.20 = 1,796.70 : x
  2. Step 2: Convert to fraction form
    3,988.56/5,981.20 = 1,796.70/x
  3. Step 3: Cross multiply
    3,988.56x = 5,981.20 × 1,796.70
  4. Step 4: Simplify right side
    3,988.56x = 10,746,422.04
  5. Step 5: Solve for x
    x = 10,746,422.04/3,988.56
  6. Step 6: Final answer
    x = 2,694.31

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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.