Home / 1,604.85-2,216.25-1,251.75

Finding the Fourth Proportional to 1,604.85, 2,216.25 and 1,251.75

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Solution

The fourth proportional to 1,604.85, 2,216.25 and 1,251.75 is: 1,728.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.85 : 2,216.25 = 1,251.75 : x
  2. Step 2: Convert to fraction form
    1,604.85/2,216.25 = 1,251.75/x
  3. Step 3: Cross multiply
    1,604.85x = 2,216.25 × 1,251.75
  4. Step 4: Simplify right side
    1,604.85x = 2,774,190.94
  5. Step 5: Solve for x
    x = 2,774,190.94/1,604.85
  6. Step 6: Final answer
    x = 1,728.63

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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.