Home / 2,832.12-3,911.88-2,176.95

Finding the Fourth Proportional to 2,832.12, 3,911.88 and 2,176.95

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Solution

The fourth proportional to 2,832.12, 3,911.88 and 2,176.95 is: 3,006.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,832.12 : 3,911.88 = 2,176.95 : x
  2. Step 2: Convert to fraction form
    2,832.12/3,911.88 = 2,176.95/x
  3. Step 3: Cross multiply
    2,832.12x = 3,911.88 × 2,176.95
  4. Step 4: Simplify right side
    2,832.12x = 8,515,967.17
  5. Step 5: Solve for x
    x = 8,515,967.17/2,832.12
  6. Step 6: Final answer
    x = 3,006.92

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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.