Home / 3,280.38-4,523.97-2,160.91

Finding the Fourth Proportional to 3,280.38, 4,523.97 and 2,160.91

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Solution

The fourth proportional to 3,280.38, 4,523.97 and 2,160.91 is: 2,980.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.38 : 4,523.97 = 2,160.91 : x
  2. Step 2: Convert to fraction form
    3,280.38/4,523.97 = 2,160.91/x
  3. Step 3: Cross multiply
    3,280.38x = 4,523.97 × 2,160.91
  4. Step 4: Simplify right side
    3,280.38x = 9,775,892.01
  5. Step 5: Solve for x
    x = 9,775,892.01/3,280.38
  6. Step 6: Final answer
    x = 2,980.11

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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.