Home / 2,872.26-4,307.38-923.94

Finding the Fourth Proportional to 2,872.26, 4,307.38 and 923.94

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Solution

The fourth proportional to 2,872.26, 4,307.38 and 923.94 is: 1,385.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.26 : 4,307.38 = 923.94 : x
  2. Step 2: Convert to fraction form
    2,872.26/4,307.38 = 923.94/x
  3. Step 3: Cross multiply
    2,872.26x = 4,307.38 × 923.94
  4. Step 4: Simplify right side
    2,872.26x = 3,979,758.37
  5. Step 5: Solve for x
    x = 3,979,758.37/2,872.26
  6. Step 6: Final answer
    x = 1,385.58

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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.