Home / 3,608.01-4,979.88-2,115.99

Finding the Fourth Proportional to 3,608.01, 4,979.88 and 2,115.99

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Solution

The fourth proportional to 3,608.01, 4,979.88 and 2,115.99 is: 2,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.01 : 4,979.88 = 2,115.99 : x
  2. Step 2: Convert to fraction form
    3,608.01/4,979.88 = 2,115.99/x
  3. Step 3: Cross multiply
    3,608.01x = 4,979.88 × 2,115.99
  4. Step 4: Simplify right side
    3,608.01x = 10,537,376.28
  5. Step 5: Solve for x
    x = 10,537,376.28/3,608.01
  6. Step 6: Final answer
    x = 2,920.55

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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.