Home / 3,549.40-4,896.07-2,220.79

Finding the Fourth Proportional to 3,549.40, 4,896.07 and 2,220.79

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Solution

The fourth proportional to 3,549.40, 4,896.07 and 2,220.79 is: 3,063.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.40 : 4,896.07 = 2,220.79 : x
  2. Step 2: Convert to fraction form
    3,549.40/4,896.07 = 2,220.79/x
  3. Step 3: Cross multiply
    3,549.40x = 4,896.07 × 2,220.79
  4. Step 4: Simplify right side
    3,549.40x = 10,873,143.30
  5. Step 5: Solve for x
    x = 10,873,143.30/3,549.40
  6. Step 6: Final answer
    x = 3,063.38

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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.