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Finding the Fourth Proportional to 1,764.28, 2,647.14 and 943.48

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Solution

The fourth proportional to 1,764.28, 2,647.14 and 943.48 is: 1,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.28 : 2,647.14 = 943.48 : x
  2. Step 2: Convert to fraction form
    1,764.28/2,647.14 = 943.48/x
  3. Step 3: Cross multiply
    1,764.28x = 2,647.14 × 943.48
  4. Step 4: Simplify right side
    1,764.28x = 2,497,523.65
  5. Step 5: Solve for x
    x = 2,497,523.65/1,764.28
  6. Step 6: Final answer
    x = 1,415.61

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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.