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Finding the Fourth Proportional to 2,069.48, 3,104.86 and 608.66

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Solution

The fourth proportional to 2,069.48, 3,104.86 and 608.66 is: 913.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.48 : 3,104.86 = 608.66 : x
  2. Step 2: Convert to fraction form
    2,069.48/3,104.86 = 608.66/x
  3. Step 3: Cross multiply
    2,069.48x = 3,104.86 × 608.66
  4. Step 4: Simplify right side
    2,069.48x = 1,889,804.09
  5. Step 5: Solve for x
    x = 1,889,804.09/2,069.48
  6. Step 6: Final answer
    x = 913.18

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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.