Home / 2,217.07-3,325.41-829.75

Finding the Fourth Proportional to 2,217.07, 3,325.41 and 829.75

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Solution

The fourth proportional to 2,217.07, 3,325.41 and 829.75 is: 1,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.07 : 3,325.41 = 829.75 : x
  2. Step 2: Convert to fraction form
    2,217.07/3,325.41 = 829.75/x
  3. Step 3: Cross multiply
    2,217.07x = 3,325.41 × 829.75
  4. Step 4: Simplify right side
    2,217.07x = 2,759,258.95
  5. Step 5: Solve for x
    x = 2,759,258.95/2,217.07
  6. Step 6: Final answer
    x = 1,244.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.