Home / 2,217.60-3,321.72-2,065.68

Finding the Fourth Proportional to 2,217.60, 3,321.72 and 2,065.68

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Solution

The fourth proportional to 2,217.60, 3,321.72 and 2,065.68 is: 3,094.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.60 : 3,321.72 = 2,065.68 : x
  2. Step 2: Convert to fraction form
    2,217.60/3,321.72 = 2,065.68/x
  3. Step 3: Cross multiply
    2,217.60x = 3,321.72 × 2,065.68
  4. Step 4: Simplify right side
    2,217.60x = 6,861,610.57
  5. Step 5: Solve for x
    x = 6,861,610.57/2,217.60
  6. Step 6: Final answer
    x = 3,094.16

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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.