Home / 2,872.24-3,963.72-1,630

Finding the Fourth Proportional to 2,872.24, 3,963.72 and 1,630

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Solution

The fourth proportional to 2,872.24, 3,963.72 and 1,630 is: 2,249.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.24 : 3,963.72 = 1,630 : x
  2. Step 2: Convert to fraction form
    2,872.24/3,963.72 = 1,630/x
  3. Step 3: Cross multiply
    2,872.24x = 3,963.72 × 1,630
  4. Step 4: Simplify right side
    2,872.24x = 6,460,863.60
  5. Step 5: Solve for x
    x = 6,460,863.60/2,872.24
  6. Step 6: Final answer
    x = 2,249.42

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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.