Home / 3,854.23-5,781.13-2,100.58

Finding the Fourth Proportional to 3,854.23, 5,781.13 and 2,100.58

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Solution

The fourth proportional to 3,854.23, 5,781.13 and 2,100.58 is: 3,150.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.23 : 5,781.13 = 2,100.58 : x
  2. Step 2: Convert to fraction form
    3,854.23/5,781.13 = 2,100.58/x
  3. Step 3: Cross multiply
    3,854.23x = 5,781.13 × 2,100.58
  4. Step 4: Simplify right side
    3,854.23x = 12,143,726.06
  5. Step 5: Solve for x
    x = 12,143,726.06/3,854.23
  6. Step 6: Final answer
    x = 3,150.75

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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.