Home / 2,990.38-4,122.24-2,326.06

Finding the Fourth Proportional to 2,990.38, 4,122.24 and 2,326.06

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Solution

The fourth proportional to 2,990.38, 4,122.24 and 2,326.06 is: 3,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.38 : 4,122.24 = 2,326.06 : x
  2. Step 2: Convert to fraction form
    2,990.38/4,122.24 = 2,326.06/x
  3. Step 3: Cross multiply
    2,990.38x = 4,122.24 × 2,326.06
  4. Step 4: Simplify right side
    2,990.38x = 9,588,577.57
  5. Step 5: Solve for x
    x = 9,588,577.57/2,990.38
  6. Step 6: Final answer
    x = 3,206.47

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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.