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Finding the Fourth Proportional to 5,716.89, 7,890.02 and 3,479.00

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Solution

The fourth proportional to 5,716.89, 7,890.02 and 3,479.00 is: 4,801.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.89 : 7,890.02 = 3,479.00 : x
  2. Step 2: Convert to fraction form
    5,716.89/7,890.02 = 3,479.00/x
  3. Step 3: Cross multiply
    5,716.89x = 7,890.02 × 3,479.00
  4. Step 4: Simplify right side
    5,716.89x = 27,449,342.46
  5. Step 5: Solve for x
    x = 27,449,342.46/5,716.89
  6. Step 6: Final answer
    x = 4,801.44

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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.