Home / 3,470.94-4,789.34-2,145.08

Finding the Fourth Proportional to 3,470.94, 4,789.34 and 2,145.08

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Solution

The fourth proportional to 3,470.94, 4,789.34 and 2,145.08 is: 2,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.94 : 4,789.34 = 2,145.08 : x
  2. Step 2: Convert to fraction form
    3,470.94/4,789.34 = 2,145.08/x
  3. Step 3: Cross multiply
    3,470.94x = 4,789.34 × 2,145.08
  4. Step 4: Simplify right side
    3,470.94x = 10,273,517.45
  5. Step 5: Solve for x
    x = 10,273,517.45/3,470.94
  6. Step 6: Final answer
    x = 2,959.87

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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.