Home / 2,872.74-3,965.90-1,933.47

Finding the Fourth Proportional to 2,872.74, 3,965.90 and 1,933.47

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Solution

The fourth proportional to 2,872.74, 3,965.90 and 1,933.47 is: 2,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.74 : 3,965.90 = 1,933.47 : x
  2. Step 2: Convert to fraction form
    2,872.74/3,965.90 = 1,933.47/x
  3. Step 3: Cross multiply
    2,872.74x = 3,965.90 × 1,933.47
  4. Step 4: Simplify right side
    2,872.74x = 7,667,939.01
  5. Step 5: Solve for x
    x = 7,667,939.01/2,872.74
  6. Step 6: Final answer
    x = 2,669.21

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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.