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Finding the Fourth Proportional to 1,646.73, 2,468.48 and 914.79

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Solution

The fourth proportional to 1,646.73, 2,468.48 and 914.79 is: 1,371.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.73 : 2,468.48 = 914.79 : x
  2. Step 2: Convert to fraction form
    1,646.73/2,468.48 = 914.79/x
  3. Step 3: Cross multiply
    1,646.73x = 2,468.48 × 914.79
  4. Step 4: Simplify right side
    1,646.73x = 2,258,145.50
  5. Step 5: Solve for x
    x = 2,258,145.50/1,646.73
  6. Step 6: Final answer
    x = 1,371.29

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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.