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Finding the Fourth Proportional to 2,805.27, 3,872.22 and 1,923.63

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Solution

The fourth proportional to 2,805.27, 3,872.22 and 1,923.63 is: 2,655.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.27 : 3,872.22 = 1,923.63 : x
  2. Step 2: Convert to fraction form
    2,805.27/3,872.22 = 1,923.63/x
  3. Step 3: Cross multiply
    2,805.27x = 3,872.22 × 1,923.63
  4. Step 4: Simplify right side
    2,805.27x = 7,448,718.56
  5. Step 5: Solve for x
    x = 7,448,718.56/2,805.27
  6. Step 6: Final answer
    x = 2,655.26

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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.