Home / 2,715.14-4,066.38-1,982.90

Finding the Fourth Proportional to 2,715.14, 4,066.38 and 1,982.90

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Solution

The fourth proportional to 2,715.14, 4,066.38 and 1,982.90 is: 2,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.14 : 4,066.38 = 1,982.90 : x
  2. Step 2: Convert to fraction form
    2,715.14/4,066.38 = 1,982.90/x
  3. Step 3: Cross multiply
    2,715.14x = 4,066.38 × 1,982.90
  4. Step 4: Simplify right side
    2,715.14x = 8,063,224.90
  5. Step 5: Solve for x
    x = 8,063,224.90/2,715.14
  6. Step 6: Final answer
    x = 2,969.73

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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.