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Finding the Fourth Proportional to 1,648.54, 2,470.99 and 1,099.97

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Solution

The fourth proportional to 1,648.54, 2,470.99 and 1,099.97 is: 1,648.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,648.54 : 2,470.99 = 1,099.97 : x
  2. Step 2: Convert to fraction form
    1,648.54/2,470.99 = 1,099.97/x
  3. Step 3: Cross multiply
    1,648.54x = 2,470.99 × 1,099.97
  4. Step 4: Simplify right side
    1,648.54x = 2,718,014.87
  5. Step 5: Solve for x
    x = 2,718,014.87/1,648.54
  6. Step 6: Final answer
    x = 1,648.74

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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.