Home / 1,968-2,949.76-1,102.88

Finding the Fourth Proportional to 1,968, 2,949.76 and 1,102.88

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Solution

The fourth proportional to 1,968, 2,949.76 and 1,102.88 is: 1,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968 : 2,949.76 = 1,102.88 : x
  2. Step 2: Convert to fraction form
    1,968/2,949.76 = 1,102.88/x
  3. Step 3: Cross multiply
    1,968x = 2,949.76 × 1,102.88
  4. Step 4: Simplify right side
    1,968x = 3,253,231.31
  5. Step 5: Solve for x
    x = 3,253,231.31/1,968
  6. Step 6: Final answer
    x = 1,653.06

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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.