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Finding the Fourth Proportional to 1,721.74, 2,583.24 and 734.84

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Solution

The fourth proportional to 1,721.74, 2,583.24 and 734.84 is: 1,102.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.74 : 2,583.24 = 734.84 : x
  2. Step 2: Convert to fraction form
    1,721.74/2,583.24 = 734.84/x
  3. Step 3: Cross multiply
    1,721.74x = 2,583.24 × 734.84
  4. Step 4: Simplify right side
    1,721.74x = 1,898,268.08
  5. Step 5: Solve for x
    x = 1,898,268.08/1,721.74
  6. Step 6: Final answer
    x = 1,102.53

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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.