Home / 4,627.92-6,385.68-3,138.96

Finding the Fourth Proportional to 4,627.92, 6,385.68 and 3,138.96

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Solution

The fourth proportional to 4,627.92, 6,385.68 and 3,138.96 is: 4,331.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,627.92 : 6,385.68 = 3,138.96 : x
  2. Step 2: Convert to fraction form
    4,627.92/6,385.68 = 3,138.96/x
  3. Step 3: Cross multiply
    4,627.92x = 6,385.68 × 3,138.96
  4. Step 4: Simplify right side
    4,627.92x = 20,044,394.09
  5. Step 5: Solve for x
    x = 20,044,394.09/4,627.92
  6. Step 6: Final answer
    x = 4,331.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.