Home / 3,981.14-5,972.98-1,642.24

Finding the Fourth Proportional to 3,981.14, 5,972.98 and 1,642.24

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Solution

The fourth proportional to 3,981.14, 5,972.98 and 1,642.24 is: 2,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.14 : 5,972.98 = 1,642.24 : x
  2. Step 2: Convert to fraction form
    3,981.14/5,972.98 = 1,642.24/x
  3. Step 3: Cross multiply
    3,981.14x = 5,972.98 × 1,642.24
  4. Step 4: Simplify right side
    3,981.14x = 9,809,066.68
  5. Step 5: Solve for x
    x = 9,809,066.68/3,981.14
  6. Step 6: Final answer
    x = 2,463.88

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1.5x scale

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.