Home / 1,882.18-2,820.12-1,331.65

Finding the Fourth Proportional to 1,882.18, 2,820.12 and 1,331.65

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Solution

The fourth proportional to 1,882.18, 2,820.12 and 1,331.65 is: 1,995.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,882.18 : 2,820.12 = 1,331.65 : x
  2. Step 2: Convert to fraction form
    1,882.18/2,820.12 = 1,331.65/x
  3. Step 3: Cross multiply
    1,882.18x = 2,820.12 × 1,331.65
  4. Step 4: Simplify right side
    1,882.18x = 3,755,412.80
  5. Step 5: Solve for x
    x = 3,755,412.80/1,882.18
  6. Step 6: Final answer
    x = 1,995.25

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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.