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Finding the Fourth Proportional to 1,499.54, 2,246.49 and 881.39

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Solution

The fourth proportional to 1,499.54, 2,246.49 and 881.39 is: 1,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.54 : 2,246.49 = 881.39 : x
  2. Step 2: Convert to fraction form
    1,499.54/2,246.49 = 881.39/x
  3. Step 3: Cross multiply
    1,499.54x = 2,246.49 × 881.39
  4. Step 4: Simplify right side
    1,499.54x = 1,980,039.44
  5. Step 5: Solve for x
    x = 1,980,039.44/1,499.54
  6. Step 6: Final answer
    x = 1,320.44

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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.