Home / 1,996.39-3,009.55-1,862.61

Finding the Fourth Proportional to 1,996.39, 3,009.55 and 1,862.61

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Solution

The fourth proportional to 1,996.39, 3,009.55 and 1,862.61 is: 2,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.39 : 3,009.55 = 1,862.61 : x
  2. Step 2: Convert to fraction form
    1,996.39/3,009.55 = 1,862.61/x
  3. Step 3: Cross multiply
    1,996.39x = 3,009.55 × 1,862.61
  4. Step 4: Simplify right side
    1,996.39x = 5,605,617.93
  5. Step 5: Solve for x
    x = 5,605,617.93/1,996.39
  6. Step 6: Final answer
    x = 2,807.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.