Home / 1,949.10-2,689.76-1,202.88

Finding the Fourth Proportional to 1,949.10, 2,689.76 and 1,202.88

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Solution

The fourth proportional to 1,949.10, 2,689.76 and 1,202.88 is: 1,659.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.10 : 2,689.76 = 1,202.88 : x
  2. Step 2: Convert to fraction form
    1,949.10/2,689.76 = 1,202.88/x
  3. Step 3: Cross multiply
    1,949.10x = 2,689.76 × 1,202.88
  4. Step 4: Simplify right side
    1,949.10x = 3,235,464.84
  5. Step 5: Solve for x
    x = 3,235,464.84/1,949.10
  6. Step 6: Final answer
    x = 1,659.98

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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.