Home / 3,142.11-4,711.79-1,581.14

Finding the Fourth Proportional to 3,142.11, 4,711.79 and 1,581.14

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Solution

The fourth proportional to 3,142.11, 4,711.79 and 1,581.14 is: 2,371.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.11 : 4,711.79 = 1,581.14 : x
  2. Step 2: Convert to fraction form
    3,142.11/4,711.79 = 1,581.14/x
  3. Step 3: Cross multiply
    3,142.11x = 4,711.79 × 1,581.14
  4. Step 4: Simplify right side
    3,142.11x = 7,449,968.18
  5. Step 5: Solve for x
    x = 7,449,968.18/3,142.11
  6. Step 6: Final answer
    x = 2,371.01

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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.