Home / 4,815.92-6,645.60-2,691.44

Finding the Fourth Proportional to 4,815.92, 6,645.60 and 2,691.44

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Solution

The fourth proportional to 4,815.92, 6,645.60 and 2,691.44 is: 3,713.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.92 : 6,645.60 = 2,691.44 : x
  2. Step 2: Convert to fraction form
    4,815.92/6,645.60 = 2,691.44/x
  3. Step 3: Cross multiply
    4,815.92x = 6,645.60 × 2,691.44
  4. Step 4: Simplify right side
    4,815.92x = 17,886,233.66
  5. Step 5: Solve for x
    x = 17,886,233.66/4,815.92
  6. Step 6: Final answer
    x = 3,713.98

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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.