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Finding the Fourth Proportional to 1,101.34, 1,650.36 and 552.70

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Solution

The fourth proportional to 1,101.34, 1,650.36 and 552.70 is: 828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101.34 : 1,650.36 = 552.70 : x
  2. Step 2: Convert to fraction form
    1,101.34/1,650.36 = 552.70/x
  3. Step 3: Cross multiply
    1,101.34x = 1,650.36 × 552.70
  4. Step 4: Simplify right side
    1,101.34x = 912,153.97
  5. Step 5: Solve for x
    x = 912,153.97/1,101.34
  6. Step 6: Final answer
    x = 828.22

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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.