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Finding the Fourth Proportional to 1,673.53, 2,309.35 and 927.48

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Solution

The fourth proportional to 1,673.53, 2,309.35 and 927.48 is: 1,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.53 : 2,309.35 = 927.48 : x
  2. Step 2: Convert to fraction form
    1,673.53/2,309.35 = 927.48/x
  3. Step 3: Cross multiply
    1,673.53x = 2,309.35 × 927.48
  4. Step 4: Simplify right side
    1,673.53x = 2,141,872.33
  5. Step 5: Solve for x
    x = 2,141,872.33/1,673.53
  6. Step 6: Final answer
    x = 1,279.85

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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.