Home / 2,867.45-3,956.89-1,591.25

Finding the Fourth Proportional to 2,867.45, 3,956.89 and 1,591.25

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Solution

The fourth proportional to 2,867.45, 3,956.89 and 1,591.25 is: 2,195.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.45 : 3,956.89 = 1,591.25 : x
  2. Step 2: Convert to fraction form
    2,867.45/3,956.89 = 1,591.25/x
  3. Step 3: Cross multiply
    2,867.45x = 3,956.89 × 1,591.25
  4. Step 4: Simplify right side
    2,867.45x = 6,296,401.21
  5. Step 5: Solve for x
    x = 6,296,401.21/2,867.45
  6. Step 6: Final answer
    x = 2,195.82

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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.