Home / 3,200.16-4,416.24-2,021.76

Finding the Fourth Proportional to 3,200.16, 4,416.24 and 2,021.76

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Solution

The fourth proportional to 3,200.16, 4,416.24 and 2,021.76 is: 2,790.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.16 : 4,416.24 = 2,021.76 : x
  2. Step 2: Convert to fraction form
    3,200.16/4,416.24 = 2,021.76/x
  3. Step 3: Cross multiply
    3,200.16x = 4,416.24 × 2,021.76
  4. Step 4: Simplify right side
    3,200.16x = 8,928,577.38
  5. Step 5: Solve for x
    x = 8,928,577.38/3,200.16
  6. Step 6: Final answer
    x = 2,790.04

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Half scale
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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.