Home / 3,211.95-4,434.78-2,538.75

Finding the Fourth Proportional to 3,211.95, 4,434.78 and 2,538.75

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Solution

The fourth proportional to 3,211.95, 4,434.78 and 2,538.75 is: 3,505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.95 : 4,434.78 = 2,538.75 : x
  2. Step 2: Convert to fraction form
    3,211.95/4,434.78 = 2,538.75/x
  3. Step 3: Cross multiply
    3,211.95x = 4,434.78 × 2,538.75
  4. Step 4: Simplify right side
    3,211.95x = 11,258,797.73
  5. Step 5: Solve for x
    x = 11,258,797.73/3,211.95
  6. Step 6: Final answer
    x = 3,505.28

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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.