Home / 2,661.41-3,673.11-1,542.70

Finding the Fourth Proportional to 2,661.41, 3,673.11 and 1,542.70

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Solution

The fourth proportional to 2,661.41, 3,673.11 and 1,542.70 is: 2,129.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.41 : 3,673.11 = 1,542.70 : x
  2. Step 2: Convert to fraction form
    2,661.41/3,673.11 = 1,542.70/x
  3. Step 3: Cross multiply
    2,661.41x = 3,673.11 × 1,542.70
  4. Step 4: Simplify right side
    2,661.41x = 5,666,506.80
  5. Step 5: Solve for x
    x = 5,666,506.80/2,661.41
  6. Step 6: Final answer
    x = 2,129.14

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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.