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Finding the Fourth Proportional to 2,244.44, 3,365.75 and 945

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Solution

The fourth proportional to 2,244.44, 3,365.75 and 945 is: 1,417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,244.44 : 3,365.75 = 945 : x
  2. Step 2: Convert to fraction form
    2,244.44/3,365.75 = 945/x
  3. Step 3: Cross multiply
    2,244.44x = 3,365.75 × 945
  4. Step 4: Simplify right side
    2,244.44x = 3,180,636.11
  5. Step 5: Solve for x
    x = 3,180,636.11/2,244.44
  6. Step 6: Final answer
    x = 1,417.12

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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.