Home / 2,995.20-4,129.50-2,207.88

Finding the Fourth Proportional to 2,995.20, 4,129.50 and 2,207.88

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Solution

The fourth proportional to 2,995.20, 4,129.50 and 2,207.88 is: 3,044.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.20 : 4,129.50 = 2,207.88 : x
  2. Step 2: Convert to fraction form
    2,995.20/4,129.50 = 2,207.88/x
  3. Step 3: Cross multiply
    2,995.20x = 4,129.50 × 2,207.88
  4. Step 4: Simplify right side
    2,995.20x = 9,117,440.46
  5. Step 5: Solve for x
    x = 9,117,440.46/2,995.20
  6. Step 6: Final answer
    x = 3,044.02

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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.