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Finding the Fourth Proportional to 1,822.36, 2,732.14 and 943.92

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Solution

The fourth proportional to 1,822.36, 2,732.14 and 943.92 is: 1,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822.36 : 2,732.14 = 943.92 : x
  2. Step 2: Convert to fraction form
    1,822.36/2,732.14 = 943.92/x
  3. Step 3: Cross multiply
    1,822.36x = 2,732.14 × 943.92
  4. Step 4: Simplify right side
    1,822.36x = 2,578,921.59
  5. Step 5: Solve for x
    x = 2,578,921.59/1,822.36
  6. Step 6: Final answer
    x = 1,415.15

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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.