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Finding the Fourth Proportional to 5,254.66, 7,881.99 and 2,174.50

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Solution

The fourth proportional to 5,254.66, 7,881.99 and 2,174.50 is: 3,261.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.66 : 7,881.99 = 2,174.50 : x
  2. Step 2: Convert to fraction form
    5,254.66/7,881.99 = 2,174.50/x
  3. Step 3: Cross multiply
    5,254.66x = 7,881.99 × 2,174.50
  4. Step 4: Simplify right side
    5,254.66x = 17,139,387.26
  5. Step 5: Solve for x
    x = 17,139,387.26/5,254.66
  6. Step 6: Final answer
    x = 3,261.75

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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.