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Finding the Fourth Proportional to 2,006.35, 3,009.14 and 545.13

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Solution

The fourth proportional to 2,006.35, 3,009.14 and 545.13 is: 817.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.35 : 3,009.14 = 545.13 : x
  2. Step 2: Convert to fraction form
    2,006.35/3,009.14 = 545.13/x
  3. Step 3: Cross multiply
    2,006.35x = 3,009.14 × 545.13
  4. Step 4: Simplify right side
    2,006.35x = 1,640,372.49
  5. Step 5: Solve for x
    x = 1,640,372.49/2,006.35
  6. Step 6: Final answer
    x = 817.59

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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.