Home / 2,643.90-3,963.62-1,667.85

Finding the Fourth Proportional to 2,643.90, 3,963.62 and 1,667.85

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Solution

The fourth proportional to 2,643.90, 3,963.62 and 1,667.85 is: 2,500.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.90 : 3,963.62 = 1,667.85 : x
  2. Step 2: Convert to fraction form
    2,643.90/3,963.62 = 1,667.85/x
  3. Step 3: Cross multiply
    2,643.90x = 3,963.62 × 1,667.85
  4. Step 4: Simplify right side
    2,643.90x = 6,610,723.62
  5. Step 5: Solve for x
    x = 6,610,723.62/2,643.90
  6. Step 6: Final answer
    x = 2,500.37

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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.