Home / 3,319.57-4,974.31-2,145.97

Finding the Fourth Proportional to 3,319.57, 4,974.31 and 2,145.97

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Solution

The fourth proportional to 3,319.57, 4,974.31 and 2,145.97 is: 3,215.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.57 : 4,974.31 = 2,145.97 : x
  2. Step 2: Convert to fraction form
    3,319.57/4,974.31 = 2,145.97/x
  3. Step 3: Cross multiply
    3,319.57x = 4,974.31 × 2,145.97
  4. Step 4: Simplify right side
    3,319.57x = 10,674,684.43
  5. Step 5: Solve for x
    x = 10,674,684.43/3,319.57
  6. Step 6: Final answer
    x = 3,215.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.