Home / 1,938.14-2,672.43-1,471.58

Finding the Fourth Proportional to 1,938.14, 2,672.43 and 1,471.58

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Solution

The fourth proportional to 1,938.14, 2,672.43 and 1,471.58 is: 2,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.14 : 2,672.43 = 1,471.58 : x
  2. Step 2: Convert to fraction form
    1,938.14/2,672.43 = 1,471.58/x
  3. Step 3: Cross multiply
    1,938.14x = 2,672.43 × 1,471.58
  4. Step 4: Simplify right side
    1,938.14x = 3,932,694.54
  5. Step 5: Solve for x
    x = 3,932,694.54/1,938.14
  6. Step 6: Final answer
    x = 2,029.11

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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.