Home / 2,643.39-3,961.40-2,251.35

Finding the Fourth Proportional to 2,643.39, 3,961.40 and 2,251.35

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Solution

The fourth proportional to 2,643.39, 3,961.40 and 2,251.35 is: 3,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.39 : 3,961.40 = 2,251.35 : x
  2. Step 2: Convert to fraction form
    2,643.39/3,961.40 = 2,251.35/x
  3. Step 3: Cross multiply
    2,643.39x = 3,961.40 × 2,251.35
  4. Step 4: Simplify right side
    2,643.39x = 8,918,486.63
  5. Step 5: Solve for x
    x = 8,918,486.63/2,643.39
  6. Step 6: Final answer
    x = 3,373.88

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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.