Home / 4,084.80-5,637.12-2,221.92

Finding the Fourth Proportional to 4,084.80, 5,637.12 and 2,221.92

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Solution

The fourth proportional to 4,084.80, 5,637.12 and 2,221.92 is: 3,066.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,084.80 : 5,637.12 = 2,221.92 : x
  2. Step 2: Convert to fraction form
    4,084.80/5,637.12 = 2,221.92/x
  3. Step 3: Cross multiply
    4,084.80x = 5,637.12 × 2,221.92
  4. Step 4: Simplify right side
    4,084.80x = 12,525,229.67
  5. Step 5: Solve for x
    x = 12,525,229.67/4,084.80
  6. Step 6: Final answer
    x = 3,066.30

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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.