Home / 2,661.19-3,672.65-1,542.15

Finding the Fourth Proportional to 2,661.19, 3,672.65 and 1,542.15

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Solution

The fourth proportional to 2,661.19, 3,672.65 and 1,542.15 is: 2,128.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.19 : 3,672.65 = 1,542.15 : x
  2. Step 2: Convert to fraction form
    2,661.19/3,672.65 = 1,542.15/x
  3. Step 3: Cross multiply
    2,661.19x = 3,672.65 × 1,542.15
  4. Step 4: Simplify right side
    2,661.19x = 5,663,777.20
  5. Step 5: Solve for x
    x = 5,663,777.20/2,661.19
  6. Step 6: Final answer
    x = 2,128.29

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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.