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Finding the Fourth Proportional to 4,418.84, 6,628.22 and 1,131.92

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Solution

The fourth proportional to 4,418.84, 6,628.22 and 1,131.92 is: 1,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,418.84 : 6,628.22 = 1,131.92 : x
  2. Step 2: Convert to fraction form
    4,418.84/6,628.22 = 1,131.92/x
  3. Step 3: Cross multiply
    4,418.84x = 6,628.22 × 1,131.92
  4. Step 4: Simplify right side
    4,418.84x = 7,502,609.12
  5. Step 5: Solve for x
    x = 7,502,609.12/4,418.84
  6. Step 6: Final answer
    x = 1,697.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.