Home / 3,869.97-5,799.70-1,785.39

Finding the Fourth Proportional to 3,869.97, 5,799.70 and 1,785.39

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Solution

The fourth proportional to 3,869.97, 5,799.70 and 1,785.39 is: 2,675.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.97 : 5,799.70 = 1,785.39 : x
  2. Step 2: Convert to fraction form
    3,869.97/5,799.70 = 1,785.39/x
  3. Step 3: Cross multiply
    3,869.97x = 5,799.70 × 1,785.39
  4. Step 4: Simplify right side
    3,869.97x = 10,354,726.38
  5. Step 5: Solve for x
    x = 10,354,726.38/3,869.97
  6. Step 6: Final answer
    x = 2,675.66

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1.5x scale

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.