Home / 5,081.60-7,623.68-2,486.40

Finding the Fourth Proportional to 5,081.60, 7,623.68 and 2,486.40

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Solution

The fourth proportional to 5,081.60, 7,623.68 and 2,486.40 is: 3,730.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.60 : 7,623.68 = 2,486.40 : x
  2. Step 2: Convert to fraction form
    5,081.60/7,623.68 = 2,486.40/x
  3. Step 3: Cross multiply
    5,081.60x = 7,623.68 × 2,486.40
  4. Step 4: Simplify right side
    5,081.60x = 18,955,517.95
  5. Step 5: Solve for x
    x = 18,955,517.95/5,081.60
  6. Step 6: Final answer
    x = 3,730.23

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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.