Home / 2,691.18-4,035.10-935.78

Finding the Fourth Proportional to 2,691.18, 4,035.10 and 935.78

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Solution

The fourth proportional to 2,691.18, 4,035.10 and 935.78 is: 1,403.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.18 : 4,035.10 = 935.78 : x
  2. Step 2: Convert to fraction form
    2,691.18/4,035.10 = 935.78/x
  3. Step 3: Cross multiply
    2,691.18x = 4,035.10 × 935.78
  4. Step 4: Simplify right side
    2,691.18x = 3,775,965.88
  5. Step 5: Solve for x
    x = 3,775,965.88/2,691.18
  6. Step 6: Final answer
    x = 1,403.09

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1.5x scale

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.