Home / 1,938.88-2,675.68-1,099.52

Finding the Fourth Proportional to 1,938.88, 2,675.68 and 1,099.52

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Solution

The fourth proportional to 1,938.88, 2,675.68 and 1,099.52 is: 1,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.88 : 2,675.68 = 1,099.52 : x
  2. Step 2: Convert to fraction form
    1,938.88/2,675.68 = 1,099.52/x
  3. Step 3: Cross multiply
    1,938.88x = 2,675.68 × 1,099.52
  4. Step 4: Simplify right side
    1,938.88x = 2,941,963.67
  5. Step 5: Solve for x
    x = 2,941,963.67/1,938.88
  6. Step 6: Final answer
    x = 1,517.35

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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.