Home / 2,809.23-3,877.20-2,144.82

Finding the Fourth Proportional to 2,809.23, 3,877.20 and 2,144.82

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Solution

The fourth proportional to 2,809.23, 3,877.20 and 2,144.82 is: 2,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.23 : 3,877.20 = 2,144.82 : x
  2. Step 2: Convert to fraction form
    2,809.23/3,877.20 = 2,144.82/x
  3. Step 3: Cross multiply
    2,809.23x = 3,877.20 × 2,144.82
  4. Step 4: Simplify right side
    2,809.23x = 8,315,896.10
  5. Step 5: Solve for x
    x = 8,315,896.10/2,809.23
  6. Step 6: Final answer
    x = 2,960.20

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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.