Home / 2,635.55-3,638.76-1,691.75

Finding the Fourth Proportional to 2,635.55, 3,638.76 and 1,691.75

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Solution

The fourth proportional to 2,635.55, 3,638.76 and 1,691.75 is: 2,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.55 : 3,638.76 = 1,691.75 : x
  2. Step 2: Convert to fraction form
    2,635.55/3,638.76 = 1,691.75/x
  3. Step 3: Cross multiply
    2,635.55x = 3,638.76 × 1,691.75
  4. Step 4: Simplify right side
    2,635.55x = 6,155,872.23
  5. Step 5: Solve for x
    x = 6,155,872.23/2,635.55
  6. Step 6: Final answer
    x = 2,335.71

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1.5x scale

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.