Home / 4,115.08-5,679.61-3,118.61

Finding the Fourth Proportional to 4,115.08, 5,679.61 and 3,118.61

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Solution

The fourth proportional to 4,115.08, 5,679.61 and 3,118.61 is: 4,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.08 : 5,679.61 = 3,118.61 : x
  2. Step 2: Convert to fraction form
    4,115.08/5,679.61 = 3,118.61/x
  3. Step 3: Cross multiply
    4,115.08x = 5,679.61 × 3,118.61
  4. Step 4: Simplify right side
    4,115.08x = 17,712,488.54
  5. Step 5: Solve for x
    x = 17,712,488.54/4,115.08
  6. Step 6: Final answer
    x = 4,304.29

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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.