Home / 2,763.30-3,812.15-1,817.88

Finding the Fourth Proportional to 2,763.30, 3,812.15 and 1,817.88

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Solution

The fourth proportional to 2,763.30, 3,812.15 and 1,817.88 is: 2,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.30 : 3,812.15 = 1,817.88 : x
  2. Step 2: Convert to fraction form
    2,763.30/3,812.15 = 1,817.88/x
  3. Step 3: Cross multiply
    2,763.30x = 3,812.15 × 1,817.88
  4. Step 4: Simplify right side
    2,763.30x = 6,930,031.24
  5. Step 5: Solve for x
    x = 6,930,031.24/2,763.30
  6. Step 6: Final answer
    x = 2,507.88

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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.