Home / 5,877.11-8,109.39-3,886.59

Finding the Fourth Proportional to 5,877.11, 8,109.39 and 3,886.59

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Solution

The fourth proportional to 5,877.11, 8,109.39 and 3,886.59 is: 5,362.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,877.11 : 8,109.39 = 3,886.59 : x
  2. Step 2: Convert to fraction form
    5,877.11/8,109.39 = 3,886.59/x
  3. Step 3: Cross multiply
    5,877.11x = 8,109.39 × 3,886.59
  4. Step 4: Simplify right side
    5,877.11x = 31,517,874.08
  5. Step 5: Solve for x
    x = 31,517,874.08/5,877.11
  6. Step 6: Final answer
    x = 5,362.82

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1.5x scale

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.