Home / 5,678.16-8,516.52-2,217.84

Finding the Fourth Proportional to 5,678.16, 8,516.52 and 2,217.84

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Solution

The fourth proportional to 5,678.16, 8,516.52 and 2,217.84 is: 3,326.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.16 : 8,516.52 = 2,217.84 : x
  2. Step 2: Convert to fraction form
    5,678.16/8,516.52 = 2,217.84/x
  3. Step 3: Cross multiply
    5,678.16x = 8,516.52 × 2,217.84
  4. Step 4: Simplify right side
    5,678.16x = 18,888,278.72
  5. Step 5: Solve for x
    x = 18,888,278.72/5,678.16
  6. Step 6: Final answer
    x = 3,326.48

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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.