Home / 3,320.25-4,579.20-2,201.47

Finding the Fourth Proportional to 3,320.25, 4,579.20 and 2,201.47

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Solution

The fourth proportional to 3,320.25, 4,579.20 and 2,201.47 is: 3,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.25 : 4,579.20 = 2,201.47 : x
  2. Step 2: Convert to fraction form
    3,320.25/4,579.20 = 2,201.47/x
  3. Step 3: Cross multiply
    3,320.25x = 4,579.20 × 2,201.47
  4. Step 4: Simplify right side
    3,320.25x = 10,080,958.18
  5. Step 5: Solve for x
    x = 10,080,958.18/3,320.25
  6. Step 6: Final answer
    x = 3,036.20

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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.