Home / 2,179.11-3,007.61-1,294.74

Finding the Fourth Proportional to 2,179.11, 3,007.61 and 1,294.74

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Solution

The fourth proportional to 2,179.11, 3,007.61 and 1,294.74 is: 1,787.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.11 : 3,007.61 = 1,294.74 : x
  2. Step 2: Convert to fraction form
    2,179.11/3,007.61 = 1,294.74/x
  3. Step 3: Cross multiply
    2,179.11x = 3,007.61 × 1,294.74
  4. Step 4: Simplify right side
    2,179.11x = 3,894,072.97
  5. Step 5: Solve for x
    x = 3,894,072.97/2,179.11
  6. Step 6: Final answer
    x = 1,787.00

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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.