Home / 2,669.15-3,996.15-2,122.13

Finding the Fourth Proportional to 2,669.15, 3,996.15 and 2,122.13

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Solution

The fourth proportional to 2,669.15, 3,996.15 and 2,122.13 is: 3,177.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.15 : 3,996.15 = 2,122.13 : x
  2. Step 2: Convert to fraction form
    2,669.15/3,996.15 = 2,122.13/x
  3. Step 3: Cross multiply
    2,669.15x = 3,996.15 × 2,122.13
  4. Step 4: Simplify right side
    2,669.15x = 8,480,329.82
  5. Step 5: Solve for x
    x = 8,480,329.82/2,669.15
  6. Step 6: Final answer
    x = 3,177.17

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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.