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Finding the Fourth Proportional to 1,652.54, 2,479.62 and 727.99

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Solution

The fourth proportional to 1,652.54, 2,479.62 and 727.99 is: 1,092.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.54 : 2,479.62 = 727.99 : x
  2. Step 2: Convert to fraction form
    1,652.54/2,479.62 = 727.99/x
  3. Step 3: Cross multiply
    1,652.54x = 2,479.62 × 727.99
  4. Step 4: Simplify right side
    1,652.54x = 1,805,132.36
  5. Step 5: Solve for x
    x = 1,805,132.36/1,652.54
  6. Step 6: Final answer
    x = 1,092.34

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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.