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Finding the Fourth Proportional to 4,003.78, 6,005.11 and 1,229.68

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Solution

The fourth proportional to 4,003.78, 6,005.11 and 1,229.68 is: 1,844.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,003.78 : 6,005.11 = 1,229.68 : x
  2. Step 2: Convert to fraction form
    4,003.78/6,005.11 = 1,229.68/x
  3. Step 3: Cross multiply
    4,003.78x = 6,005.11 × 1,229.68
  4. Step 4: Simplify right side
    4,003.78x = 7,384,373.86
  5. Step 5: Solve for x
    x = 7,384,373.86/4,003.78
  6. Step 6: Final answer
    x = 1,844.35

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1.5x scale

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.