Home / 5,516.87-7,613.15-3,158.81

Finding the Fourth Proportional to 5,516.87, 7,613.15 and 3,158.81

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Solution

The fourth proportional to 5,516.87, 7,613.15 and 3,158.81 is: 4,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.87 : 7,613.15 = 3,158.81 : x
  2. Step 2: Convert to fraction form
    5,516.87/7,613.15 = 3,158.81/x
  3. Step 3: Cross multiply
    5,516.87x = 7,613.15 × 3,158.81
  4. Step 4: Simplify right side
    5,516.87x = 24,048,478.56
  5. Step 5: Solve for x
    x = 24,048,478.56/5,516.87
  6. Step 6: Final answer
    x = 4,359.08

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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.