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Finding the Fourth Proportional to 1,716.84, 2,571.68 and 1,423.66

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Solution

The fourth proportional to 1,716.84, 2,571.68 and 1,423.66 is: 2,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.84 : 2,571.68 = 1,423.66 : x
  2. Step 2: Convert to fraction form
    1,716.84/2,571.68 = 1,423.66/x
  3. Step 3: Cross multiply
    1,716.84x = 2,571.68 × 1,423.66
  4. Step 4: Simplify right side
    1,716.84x = 3,661,197.95
  5. Step 5: Solve for x
    x = 3,661,197.95/1,716.84
  6. Step 6: Final answer
    x = 2,132.52

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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.