Home / 1,480.13-2,042.90-949.43

Finding the Fourth Proportional to 1,480.13, 2,042.90 and 949.43

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Solution

The fourth proportional to 1,480.13, 2,042.90 and 949.43 is: 1,310.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.13 : 2,042.90 = 949.43 : x
  2. Step 2: Convert to fraction form
    1,480.13/2,042.90 = 949.43/x
  3. Step 3: Cross multiply
    1,480.13x = 2,042.90 × 949.43
  4. Step 4: Simplify right side
    1,480.13x = 1,939,593.10
  5. Step 5: Solve for x
    x = 1,939,593.10/1,480.13
  6. Step 6: Final answer
    x = 1,310.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.