Home / 3,221.08-4,853.56-2,648.90

Finding the Fourth Proportional to 3,221.08, 4,853.56 and 2,648.90

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Solution

The fourth proportional to 3,221.08, 4,853.56 and 2,648.90 is: 3,991.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.08 : 4,853.56 = 2,648.90 : x
  2. Step 2: Convert to fraction form
    3,221.08/4,853.56 = 2,648.90/x
  3. Step 3: Cross multiply
    3,221.08x = 4,853.56 × 2,648.90
  4. Step 4: Simplify right side
    3,221.08x = 12,856,595.08
  5. Step 5: Solve for x
    x = 12,856,595.08/3,221.08
  6. Step 6: Final answer
    x = 3,991.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.