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Finding the Fourth Proportional to 2,717.94, 3,750.62 and 1,539.12

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Solution

The fourth proportional to 2,717.94, 3,750.62 and 1,539.12 is: 2,123.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.94 : 3,750.62 = 1,539.12 : x
  2. Step 2: Convert to fraction form
    2,717.94/3,750.62 = 1,539.12/x
  3. Step 3: Cross multiply
    2,717.94x = 3,750.62 × 1,539.12
  4. Step 4: Simplify right side
    2,717.94x = 5,772,654.25
  5. Step 5: Solve for x
    x = 5,772,654.25/2,717.94
  6. Step 6: Final answer
    x = 2,123.91

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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.