Home / 4,608.60-6,913.96-1,321.72

Finding the Fourth Proportional to 4,608.60, 6,913.96 and 1,321.72

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Solution

The fourth proportional to 4,608.60, 6,913.96 and 1,321.72 is: 1,982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,608.60 : 6,913.96 = 1,321.72 : x
  2. Step 2: Convert to fraction form
    4,608.60/6,913.96 = 1,321.72/x
  3. Step 3: Cross multiply
    4,608.60x = 6,913.96 × 1,321.72
  4. Step 4: Simplify right side
    4,608.60x = 9,138,319.21
  5. Step 5: Solve for x
    x = 9,138,319.21/4,608.60
  6. Step 6: Final answer
    x = 1,982.88

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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.