Home / 5,516.62-7,612.80-3,158.56

Finding the Fourth Proportional to 5,516.62, 7,612.80 and 3,158.56

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Solution

The fourth proportional to 5,516.62, 7,612.80 and 3,158.56 is: 4,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.62 : 7,612.80 = 3,158.56 : x
  2. Step 2: Convert to fraction form
    5,516.62/7,612.80 = 3,158.56/x
  3. Step 3: Cross multiply
    5,516.62x = 7,612.80 × 3,158.56
  4. Step 4: Simplify right side
    5,516.62x = 24,045,485.57
  5. Step 5: Solve for x
    x = 24,045,485.57/5,516.62
  6. Step 6: Final answer
    x = 4,358.74

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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.