Home / 1,982.55-2,973.61-1,249.90

Finding the Fourth Proportional to 1,982.55, 2,973.61 and 1,249.90

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Solution

The fourth proportional to 1,982.55, 2,973.61 and 1,249.90 is: 1,874.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.55 : 2,973.61 = 1,249.90 : x
  2. Step 2: Convert to fraction form
    1,982.55/2,973.61 = 1,249.90/x
  3. Step 3: Cross multiply
    1,982.55x = 2,973.61 × 1,249.90
  4. Step 4: Simplify right side
    1,982.55x = 3,716,715.14
  5. Step 5: Solve for x
    x = 3,716,715.14/1,982.55
  6. Step 6: Final answer
    x = 1,874.71

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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.