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Finding the Fourth Proportional to 5,277.08, 7,914.72 and 2,641.88

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Solution

The fourth proportional to 5,277.08, 7,914.72 and 2,641.88 is: 3,962.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.08 : 7,914.72 = 2,641.88 : x
  2. Step 2: Convert to fraction form
    5,277.08/7,914.72 = 2,641.88/x
  3. Step 3: Cross multiply
    5,277.08x = 7,914.72 × 2,641.88
  4. Step 4: Simplify right side
    5,277.08x = 20,909,740.47
  5. Step 5: Solve for x
    x = 20,909,740.47/5,277.08
  6. Step 6: Final answer
    x = 3,962.37

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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.