Home / 2,108.10-2,909.17-1,163.95

Finding the Fourth Proportional to 2,108.10, 2,909.17 and 1,163.95

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Solution

The fourth proportional to 2,108.10, 2,909.17 and 1,163.95 is: 1,606.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.10 : 2,909.17 = 1,163.95 : x
  2. Step 2: Convert to fraction form
    2,108.10/2,909.17 = 1,163.95/x
  3. Step 3: Cross multiply
    2,108.10x = 2,909.17 × 1,163.95
  4. Step 4: Simplify right side
    2,108.10x = 3,386,128.42
  5. Step 5: Solve for x
    x = 3,386,128.42/2,108.10
  6. Step 6: Final answer
    x = 1,606.25

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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.