Home / 5,406.60-8,107.20-2,481.60

Finding the Fourth Proportional to 5,406.60, 8,107.20 and 2,481.60

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Solution

The fourth proportional to 5,406.60, 8,107.20 and 2,481.60 is: 3,721.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.60 : 8,107.20 = 2,481.60 : x
  2. Step 2: Convert to fraction form
    5,406.60/8,107.20 = 2,481.60/x
  3. Step 3: Cross multiply
    5,406.60x = 8,107.20 × 2,481.60
  4. Step 4: Simplify right side
    5,406.60x = 20,118,827.52
  5. Step 5: Solve for x
    x = 20,118,827.52/5,406.60
  6. Step 6: Final answer
    x = 3,721.16

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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.