Home / 5,516.78-7,612.92-2,998.76

Finding the Fourth Proportional to 5,516.78, 7,612.92 and 2,998.76

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Solution

The fourth proportional to 5,516.78, 7,612.92 and 2,998.76 is: 4,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.78 : 7,612.92 = 2,998.76 : x
  2. Step 2: Convert to fraction form
    5,516.78/7,612.92 = 2,998.76/x
  3. Step 3: Cross multiply
    5,516.78x = 7,612.92 × 2,998.76
  4. Step 4: Simplify right side
    5,516.78x = 22,829,281.91
  5. Step 5: Solve for x
    x = 22,829,281.91/5,516.78
  6. Step 6: Final answer
    x = 4,138.16

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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.