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Finding the Fourth Proportional to 2,873.17, 3,965.28 and 1,754.86

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Solution

The fourth proportional to 2,873.17, 3,965.28 and 1,754.86 is: 2,421.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.17 : 3,965.28 = 1,754.86 : x
  2. Step 2: Convert to fraction form
    2,873.17/3,965.28 = 1,754.86/x
  3. Step 3: Cross multiply
    2,873.17x = 3,965.28 × 1,754.86
  4. Step 4: Simplify right side
    2,873.17x = 6,958,511.26
  5. Step 5: Solve for x
    x = 6,958,511.26/2,873.17
  6. Step 6: Final answer
    x = 2,421.89

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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.