Home / 2,610.60-3,905.10-2,221.80

Finding the Fourth Proportional to 2,610.60, 3,905.10 and 2,221.80

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Solution

The fourth proportional to 2,610.60, 3,905.10 and 2,221.80 is: 3,323.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,610.60 : 3,905.10 = 2,221.80 : x
  2. Step 2: Convert to fraction form
    2,610.60/3,905.10 = 2,221.80/x
  3. Step 3: Cross multiply
    2,610.60x = 3,905.10 × 2,221.80
  4. Step 4: Simplify right side
    2,610.60x = 8,676,351.18
  5. Step 5: Solve for x
    x = 8,676,351.18/2,610.60
  6. Step 6: Final answer
    x = 3,323.51

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1.5x scale

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.