Home / 2,635.11-3,638.13-1,641.84

Finding the Fourth Proportional to 2,635.11, 3,638.13 and 1,641.84

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Solution

The fourth proportional to 2,635.11, 3,638.13 and 1,641.84 is: 2,266.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.11 : 3,638.13 = 1,641.84 : x
  2. Step 2: Convert to fraction form
    2,635.11/3,638.13 = 1,641.84/x
  3. Step 3: Cross multiply
    2,635.11x = 3,638.13 × 1,641.84
  4. Step 4: Simplify right side
    2,635.11x = 5,973,227.36
  5. Step 5: Solve for x
    x = 5,973,227.36/2,635.11
  6. Step 6: Final answer
    x = 2,266.78

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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.