Home / 3,201.74-4,422.61-2,454.40

Finding the Fourth Proportional to 3,201.74, 4,422.61 and 2,454.40

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Solution

The fourth proportional to 3,201.74, 4,422.61 and 2,454.40 is: 3,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.74 : 4,422.61 = 2,454.40 : x
  2. Step 2: Convert to fraction form
    3,201.74/4,422.61 = 2,454.40/x
  3. Step 3: Cross multiply
    3,201.74x = 4,422.61 × 2,454.40
  4. Step 4: Simplify right side
    3,201.74x = 10,854,868.12
  5. Step 5: Solve for x
    x = 10,854,868.12/3,201.74
  6. Step 6: Final answer
    x = 3,390.30

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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.