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Finding the Fourth Proportional to 2,005.38, 3,006.18 and 706.02

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Solution

The fourth proportional to 2,005.38, 3,006.18 and 706.02 is: 1,058.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.38 : 3,006.18 = 706.02 : x
  2. Step 2: Convert to fraction form
    2,005.38/3,006.18 = 706.02/x
  3. Step 3: Cross multiply
    2,005.38x = 3,006.18 × 706.02
  4. Step 4: Simplify right side
    2,005.38x = 2,122,423.20
  5. Step 5: Solve for x
    x = 2,122,423.20/2,005.38
  6. Step 6: Final answer
    x = 1,058.36

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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.