Home / 3,478.43-5,217.60-845.96

Finding the Fourth Proportional to 3,478.43, 5,217.60 and 845.96

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Solution

The fourth proportional to 3,478.43, 5,217.60 and 845.96 is: 1,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.43 : 5,217.60 = 845.96 : x
  2. Step 2: Convert to fraction form
    3,478.43/5,217.60 = 845.96/x
  3. Step 3: Cross multiply
    3,478.43x = 5,217.60 × 845.96
  4. Step 4: Simplify right side
    3,478.43x = 4,413,854.81
  5. Step 5: Solve for x
    x = 4,413,854.81/3,478.43
  6. Step 6: Final answer
    x = 1,268.92

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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.