Home / 2,108.29-3,160.87-1,011.61

Finding the Fourth Proportional to 2,108.29, 3,160.87 and 1,011.61

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Solution

The fourth proportional to 2,108.29, 3,160.87 and 1,011.61 is: 1,516.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.29 : 3,160.87 = 1,011.61 : x
  2. Step 2: Convert to fraction form
    2,108.29/3,160.87 = 1,011.61/x
  3. Step 3: Cross multiply
    2,108.29x = 3,160.87 × 1,011.61
  4. Step 4: Simplify right side
    2,108.29x = 3,197,567.70
  5. Step 5: Solve for x
    x = 3,197,567.70/2,108.29
  6. Step 6: Final answer
    x = 1,516.66

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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.