Home / 2,872.34-4,301.20-2,631.77

Finding the Fourth Proportional to 2,872.34, 4,301.20 and 2,631.77

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Solution

The fourth proportional to 2,872.34, 4,301.20 and 2,631.77 is: 3,940.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.34 : 4,301.20 = 2,631.77 : x
  2. Step 2: Convert to fraction form
    2,872.34/4,301.20 = 2,631.77/x
  3. Step 3: Cross multiply
    2,872.34x = 4,301.20 × 2,631.77
  4. Step 4: Simplify right side
    2,872.34x = 11,319,769.12
  5. Step 5: Solve for x
    x = 11,319,769.12/2,872.34
  6. Step 6: Final answer
    x = 3,940.96

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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.