Home / 3,478.97-4,800.13-2,220.64

Finding the Fourth Proportional to 3,478.97, 4,800.13 and 2,220.64

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Solution

The fourth proportional to 3,478.97, 4,800.13 and 2,220.64 is: 3,063.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.97 : 4,800.13 = 2,220.64 : x
  2. Step 2: Convert to fraction form
    3,478.97/4,800.13 = 2,220.64/x
  3. Step 3: Cross multiply
    3,478.97x = 4,800.13 × 2,220.64
  4. Step 4: Simplify right side
    3,478.97x = 10,659,343.13
  5. Step 5: Solve for x
    x = 10,659,343.13/3,478.97
  6. Step 6: Final answer
    x = 3,063.93

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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.