Home / 6,320.88-8,721.96-3,667.90

Finding the Fourth Proportional to 6,320.88, 8,721.96 and 3,667.90

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Solution

The fourth proportional to 6,320.88, 8,721.96 and 3,667.90 is: 5,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.88 : 8,721.96 = 3,667.90 : x
  2. Step 2: Convert to fraction form
    6,320.88/8,721.96 = 3,667.90/x
  3. Step 3: Cross multiply
    6,320.88x = 8,721.96 × 3,667.90
  4. Step 4: Simplify right side
    6,320.88x = 31,991,277.08
  5. Step 5: Solve for x
    x = 31,991,277.08/6,320.88
  6. Step 6: Final answer
    x = 5,061.21

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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.