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Finding the Fourth Proportional to 3,881.88, 5,360.04 and 3,133.44

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Solution

The fourth proportional to 3,881.88, 5,360.04 and 3,133.44 is: 4,326.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.88 : 5,360.04 = 3,133.44 : x
  2. Step 2: Convert to fraction form
    3,881.88/5,360.04 = 3,133.44/x
  3. Step 3: Cross multiply
    3,881.88x = 5,360.04 × 3,133.44
  4. Step 4: Simplify right side
    3,881.88x = 16,795,363.74
  5. Step 5: Solve for x
    x = 16,795,363.74/3,881.88
  6. Step 6: Final answer
    x = 4,326.61

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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.