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Finding the Fourth Proportional to 2,224.81, 3,337.82 and 764.08

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Solution

The fourth proportional to 2,224.81, 3,337.82 and 764.08 is: 1,146.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.81 : 3,337.82 = 764.08 : x
  2. Step 2: Convert to fraction form
    2,224.81/3,337.82 = 764.08/x
  3. Step 3: Cross multiply
    2,224.81x = 3,337.82 × 764.08
  4. Step 4: Simplify right side
    2,224.81x = 2,550,355.07
  5. Step 5: Solve for x
    x = 2,550,355.07/2,224.81
  6. Step 6: Final answer
    x = 1,146.33

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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.