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Finding the Fourth Proportional to 2,133.08, 2,945.08 and 1,336.72

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Solution

The fourth proportional to 2,133.08, 2,945.08 and 1,336.72 is: 1,845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.08 : 2,945.08 = 1,336.72 : x
  2. Step 2: Convert to fraction form
    2,133.08/2,945.08 = 1,336.72/x
  3. Step 3: Cross multiply
    2,133.08x = 2,945.08 × 1,336.72
  4. Step 4: Simplify right side
    2,133.08x = 3,936,747.34
  5. Step 5: Solve for x
    x = 3,936,747.34/2,133.08
  6. Step 6: Final answer
    x = 1,845.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.