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Finding the Fourth Proportional to 3,504.87, 5,257.71 and 908.01

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Solution

The fourth proportional to 3,504.87, 5,257.71 and 908.01 is: 1,362.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.87 : 5,257.71 = 908.01 : x
  2. Step 2: Convert to fraction form
    3,504.87/5,257.71 = 908.01/x
  3. Step 3: Cross multiply
    3,504.87x = 5,257.71 × 908.01
  4. Step 4: Simplify right side
    3,504.87x = 4,774,053.26
  5. Step 5: Solve for x
    x = 4,774,053.26/3,504.87
  6. Step 6: Final answer
    x = 1,362.12

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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.