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Finding the Fourth Proportional to 1,481.74, 2,223.39 and 660.01

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Solution

The fourth proportional to 1,481.74, 2,223.39 and 660.01 is: 990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.74 : 2,223.39 = 660.01 : x
  2. Step 2: Convert to fraction form
    1,481.74/2,223.39 = 660.01/x
  3. Step 3: Cross multiply
    1,481.74x = 2,223.39 × 660.01
  4. Step 4: Simplify right side
    1,481.74x = 1,467,459.63
  5. Step 5: Solve for x
    x = 1,467,459.63/1,481.74
  6. Step 6: Final answer
    x = 990.36

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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.