Home / 2,976.38-4,471.41-2,100.90

Finding the Fourth Proportional to 2,976.38, 4,471.41 and 2,100.90

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Solution

The fourth proportional to 2,976.38, 4,471.41 and 2,100.90 is: 3,156.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.38 : 4,471.41 = 2,100.90 : x
  2. Step 2: Convert to fraction form
    2,976.38/4,471.41 = 2,100.90/x
  3. Step 3: Cross multiply
    2,976.38x = 4,471.41 × 2,100.90
  4. Step 4: Simplify right side
    2,976.38x = 9,393,985.27
  5. Step 5: Solve for x
    x = 9,393,985.27/2,976.38
  6. Step 6: Final answer
    x = 3,156.18

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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.