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Finding the Fourth Proportional to 1,650.35, 2,476.38 and 726.56

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Solution

The fourth proportional to 1,650.35, 2,476.38 and 726.56 is: 1,090.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,650.35 : 2,476.38 = 726.56 : x
  2. Step 2: Convert to fraction form
    1,650.35/2,476.38 = 726.56/x
  3. Step 3: Cross multiply
    1,650.35x = 2,476.38 × 726.56
  4. Step 4: Simplify right side
    1,650.35x = 1,799,238.65
  5. Step 5: Solve for x
    x = 1,799,238.65/1,650.35
  6. Step 6: Final answer
    x = 1,090.22

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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.