Home / 4,081.60-6,115.92-3,159.40

Finding the Fourth Proportional to 4,081.60, 6,115.92 and 3,159.40

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Solution

The fourth proportional to 4,081.60, 6,115.92 and 3,159.40 is: 4,734.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.60 : 6,115.92 = 3,159.40 : x
  2. Step 2: Convert to fraction form
    4,081.60/6,115.92 = 3,159.40/x
  3. Step 3: Cross multiply
    4,081.60x = 6,115.92 × 3,159.40
  4. Step 4: Simplify right side
    4,081.60x = 19,322,637.65
  5. Step 5: Solve for x
    x = 19,322,637.65/4,081.60
  6. Step 6: Final answer
    x = 4,734.08

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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.