Home / 2,286.75-3,155.85-1,292.00

Finding the Fourth Proportional to 2,286.75, 3,155.85 and 1,292.00

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Solution

The fourth proportional to 2,286.75, 3,155.85 and 1,292.00 is: 1,783.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.75 : 3,155.85 = 1,292.00 : x
  2. Step 2: Convert to fraction form
    2,286.75/3,155.85 = 1,292.00/x
  3. Step 3: Cross multiply
    2,286.75x = 3,155.85 × 1,292.00
  4. Step 4: Simplify right side
    2,286.75x = 4,077,366.09
  5. Step 5: Solve for x
    x = 4,077,366.09/2,286.75
  6. Step 6: Final answer
    x = 1,783.04

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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.