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Finding the Fourth Proportional to 5,891.34, 8,828.78 and 4,428.78

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Solution

The fourth proportional to 5,891.34, 8,828.78 and 4,428.78 is: 6,636.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,891.34 : 8,828.78 = 4,428.78 : x
  2. Step 2: Convert to fraction form
    5,891.34/8,828.78 = 4,428.78/x
  3. Step 3: Cross multiply
    5,891.34x = 8,828.78 × 4,428.78
  4. Step 4: Simplify right side
    5,891.34x = 39,100,724.29
  5. Step 5: Solve for x
    x = 39,100,724.29/5,891.34
  6. Step 6: Final answer
    x = 6,636.98

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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.