Home / 1,938.45-2,908.71-1,833.92

Finding the Fourth Proportional to 1,938.45, 2,908.71 and 1,833.92

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Solution

The fourth proportional to 1,938.45, 2,908.71 and 1,833.92 is: 2,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.45 : 2,908.71 = 1,833.92 : x
  2. Step 2: Convert to fraction form
    1,938.45/2,908.71 = 1,833.92/x
  3. Step 3: Cross multiply
    1,938.45x = 2,908.71 × 1,833.92
  4. Step 4: Simplify right side
    1,938.45x = 5,334,326.90
  5. Step 5: Solve for x
    x = 5,334,326.90/1,938.45
  6. Step 6: Final answer
    x = 2,751.85

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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.