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Finding the Fourth Proportional to 6,377.58, 8,801.55 and 3,859.79

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Solution

The fourth proportional to 6,377.58, 8,801.55 and 3,859.79 is: 5,326.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,377.58 : 8,801.55 = 3,859.79 : x
  2. Step 2: Convert to fraction form
    6,377.58/8,801.55 = 3,859.79/x
  3. Step 3: Cross multiply
    6,377.58x = 8,801.55 × 3,859.79
  4. Step 4: Simplify right side
    6,377.58x = 33,972,090.67
  5. Step 5: Solve for x
    x = 33,972,090.67/6,377.58
  6. Step 6: Final answer
    x = 5,326.80

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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.