Home / 3,312.38-4,964.91-2,139.60

Finding the Fourth Proportional to 3,312.38, 4,964.91 and 2,139.60

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Solution

The fourth proportional to 3,312.38, 4,964.91 and 2,139.60 is: 3,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.38 : 4,964.91 = 2,139.60 : x
  2. Step 2: Convert to fraction form
    3,312.38/4,964.91 = 2,139.60/x
  3. Step 3: Cross multiply
    3,312.38x = 4,964.91 × 2,139.60
  4. Step 4: Simplify right side
    3,312.38x = 10,622,921.44
  5. Step 5: Solve for x
    x = 10,622,921.44/3,312.38
  6. Step 6: Final answer
    x = 3,207.04

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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.