Home / 5,516.78-7,611.57-3,158.46

Finding the Fourth Proportional to 5,516.78, 7,611.57 and 3,158.46

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Solution

The fourth proportional to 5,516.78, 7,611.57 and 3,158.46 is: 4,357.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.78 : 7,611.57 = 3,158.46 : x
  2. Step 2: Convert to fraction form
    5,516.78/7,611.57 = 3,158.46/x
  3. Step 3: Cross multiply
    5,516.78x = 7,611.57 × 3,158.46
  4. Step 4: Simplify right side
    5,516.78x = 24,040,839.38
  5. Step 5: Solve for x
    x = 24,040,839.38/5,516.78
  6. Step 6: Final answer
    x = 4,357.77

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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.