Home / 2,938.20-4,382.54-2,734.08

Finding the Fourth Proportional to 2,938.20, 4,382.54 and 2,734.08

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Solution

The fourth proportional to 2,938.20, 4,382.54 and 2,734.08 is: 4,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.20 : 4,382.54 = 2,734.08 : x
  2. Step 2: Convert to fraction form
    2,938.20/4,382.54 = 2,734.08/x
  3. Step 3: Cross multiply
    2,938.20x = 4,382.54 × 2,734.08
  4. Step 4: Simplify right side
    2,938.20x = 11,982,214.96
  5. Step 5: Solve for x
    x = 11,982,214.96/2,938.20
  6. Step 6: Final answer
    x = 4,078.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.