Home / 2,642.78-3,647.09-1,463.96

Finding the Fourth Proportional to 2,642.78, 3,647.09 and 1,463.96

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Solution

The fourth proportional to 2,642.78, 3,647.09 and 1,463.96 is: 2,020.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.78 : 3,647.09 = 1,463.96 : x
  2. Step 2: Convert to fraction form
    2,642.78/3,647.09 = 1,463.96/x
  3. Step 3: Cross multiply
    2,642.78x = 3,647.09 × 1,463.96
  4. Step 4: Simplify right side
    2,642.78x = 5,339,193.88
  5. Step 5: Solve for x
    x = 5,339,193.88/2,642.78
  6. Step 6: Final answer
    x = 2,020.29

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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.