Home / 3,690.42-5,087.79-3,575.76

Finding the Fourth Proportional to 3,690.42, 5,087.79 and 3,575.76

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Solution

The fourth proportional to 3,690.42, 5,087.79 and 3,575.76 is: 4,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.42 : 5,087.79 = 3,575.76 : x
  2. Step 2: Convert to fraction form
    3,690.42/5,087.79 = 3,575.76/x
  3. Step 3: Cross multiply
    3,690.42x = 5,087.79 × 3,575.76
  4. Step 4: Simplify right side
    3,690.42x = 18,192,715.97
  5. Step 5: Solve for x
    x = 18,192,715.97/3,690.42
  6. Step 6: Final answer
    x = 4,929.71

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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.