Home / 2,179.06-3,007.87-1,294.85

Finding the Fourth Proportional to 2,179.06, 3,007.87 and 1,294.85

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Solution

The fourth proportional to 2,179.06, 3,007.87 and 1,294.85 is: 1,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.06 : 3,007.87 = 1,294.85 : x
  2. Step 2: Convert to fraction form
    2,179.06/3,007.87 = 1,294.85/x
  3. Step 3: Cross multiply
    2,179.06x = 3,007.87 × 1,294.85
  4. Step 4: Simplify right side
    2,179.06x = 3,894,744.75
  5. Step 5: Solve for x
    x = 3,894,744.75/2,179.06
  6. Step 6: Final answer
    x = 1,787.35

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1.5x scale

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.