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Finding the Fourth Proportional to 6,844.83, 9,445.92 and 3,778.78

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Solution

The fourth proportional to 6,844.83, 9,445.92 and 3,778.78 is: 5,214.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,844.83 : 9,445.92 = 3,778.78 : x
  2. Step 2: Convert to fraction form
    6,844.83/9,445.92 = 3,778.78/x
  3. Step 3: Cross multiply
    6,844.83x = 9,445.92 × 3,778.78
  4. Step 4: Simplify right side
    6,844.83x = 35,693,987.45
  5. Step 5: Solve for x
    x = 35,693,987.45/6,844.83
  6. Step 6: Final answer
    x = 5,214.74

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1.5x scale

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.