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Finding the Fourth Proportional to 3,881.34, 5,816.07 and 1,934.64

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Solution

The fourth proportional to 3,881.34, 5,816.07 and 1,934.64 is: 2,899.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.34 : 5,816.07 = 1,934.64 : x
  2. Step 2: Convert to fraction form
    3,881.34/5,816.07 = 1,934.64/x
  3. Step 3: Cross multiply
    3,881.34x = 5,816.07 × 1,934.64
  4. Step 4: Simplify right side
    3,881.34x = 11,252,001.66
  5. Step 5: Solve for x
    x = 11,252,001.66/3,881.34
  6. Step 6: Final answer
    x = 2,899.00

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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.