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Finding the Fourth Proportional to 3,681.88, 5,522.67 and 908.41

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Solution

The fourth proportional to 3,681.88, 5,522.67 and 908.41 is: 1,362.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.88 : 5,522.67 = 908.41 : x
  2. Step 2: Convert to fraction form
    3,681.88/5,522.67 = 908.41/x
  3. Step 3: Cross multiply
    3,681.88x = 5,522.67 × 908.41
  4. Step 4: Simplify right side
    3,681.88x = 5,016,848.65
  5. Step 5: Solve for x
    x = 5,016,848.65/3,681.88
  6. Step 6: Final answer
    x = 1,362.58

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1.5x scale

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.