Home / 5,687.60-8,540.20-3,095.60

Finding the Fourth Proportional to 5,687.60, 8,540.20 and 3,095.60

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Solution

The fourth proportional to 5,687.60, 8,540.20 and 3,095.60 is: 4,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,687.60 : 8,540.20 = 3,095.60 : x
  2. Step 2: Convert to fraction form
    5,687.60/8,540.20 = 3,095.60/x
  3. Step 3: Cross multiply
    5,687.60x = 8,540.20 × 3,095.60
  4. Step 4: Simplify right side
    5,687.60x = 26,437,043.12
  5. Step 5: Solve for x
    x = 26,437,043.12/5,687.60
  6. Step 6: Final answer
    x = 4,648.19

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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.