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Finding the Fourth Proportional to 1,717.71, 2,368.70 and 1,469.85

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Solution

The fourth proportional to 1,717.71, 2,368.70 and 1,469.85 is: 2,026.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.71 : 2,368.70 = 1,469.85 : x
  2. Step 2: Convert to fraction form
    1,717.71/2,368.70 = 1,469.85/x
  3. Step 3: Cross multiply
    1,717.71x = 2,368.70 × 1,469.85
  4. Step 4: Simplify right side
    1,717.71x = 3,481,626.35
  5. Step 5: Solve for x
    x = 3,481,626.35/1,717.71
  6. Step 6: Final answer
    x = 2,026.90

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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.