Home / 2,669.15-3,682.40-1,549.90

Finding the Fourth Proportional to 2,669.15, 3,682.40 and 1,549.90

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Solution

The fourth proportional to 2,669.15, 3,682.40 and 1,549.90 is: 2,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.15 : 3,682.40 = 1,549.90 : x
  2. Step 2: Convert to fraction form
    2,669.15/3,682.40 = 1,549.90/x
  3. Step 3: Cross multiply
    2,669.15x = 3,682.40 × 1,549.90
  4. Step 4: Simplify right side
    2,669.15x = 5,707,348.61
  5. Step 5: Solve for x
    x = 5,707,348.61/2,669.15
  6. Step 6: Final answer
    x = 2,138.26

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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.