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Finding the Fourth Proportional to 1,169.96, 1,754.32 and 553.82

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Solution

The fourth proportional to 1,169.96, 1,754.32 and 553.82 is: 830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.96 : 1,754.32 = 553.82 : x
  2. Step 2: Convert to fraction form
    1,169.96/1,754.32 = 553.82/x
  3. Step 3: Cross multiply
    1,169.96x = 1,754.32 × 553.82
  4. Step 4: Simplify right side
    1,169.96x = 971,577.50
  5. Step 5: Solve for x
    x = 971,577.50/1,169.96
  6. Step 6: Final answer
    x = 830.44

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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.