Home / 2,286.35-3,155.10-1,278.04

Finding the Fourth Proportional to 2,286.35, 3,155.10 and 1,278.04

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Solution

The fourth proportional to 2,286.35, 3,155.10 and 1,278.04 is: 1,763.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.35 : 3,155.10 = 1,278.04 : x
  2. Step 2: Convert to fraction form
    2,286.35/3,155.10 = 1,278.04/x
  3. Step 3: Cross multiply
    2,286.35x = 3,155.10 × 1,278.04
  4. Step 4: Simplify right side
    2,286.35x = 4,032,323.44
  5. Step 5: Solve for x
    x = 4,032,323.44/2,286.35
  6. Step 6: Final answer
    x = 1,763.65

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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.