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Finding the Fourth Proportional to 2,269.17, 3,404.39 and 808.47

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Solution

The fourth proportional to 2,269.17, 3,404.39 and 808.47 is: 1,212.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.17 : 3,404.39 = 808.47 : x
  2. Step 2: Convert to fraction form
    2,269.17/3,404.39 = 808.47/x
  3. Step 3: Cross multiply
    2,269.17x = 3,404.39 × 808.47
  4. Step 4: Simplify right side
    2,269.17x = 2,752,343.14
  5. Step 5: Solve for x
    x = 2,752,343.14/2,269.17
  6. Step 6: Final answer
    x = 1,212.93

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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.