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Finding the Fourth Proportional to 2,069.54, 3,104.84 and 608.71

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Solution

The fourth proportional to 2,069.54, 3,104.84 and 608.71 is: 913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.54 : 3,104.84 = 608.71 : x
  2. Step 2: Convert to fraction form
    2,069.54/3,104.84 = 608.71/x
  3. Step 3: Cross multiply
    2,069.54x = 3,104.84 × 608.71
  4. Step 4: Simplify right side
    2,069.54x = 1,889,947.16
  5. Step 5: Solve for x
    x = 1,889,947.16/2,069.54
  6. Step 6: Final answer
    x = 913.22

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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.