Home / 1,716.22-2,572.89-690.94

Finding the Fourth Proportional to 1,716.22, 2,572.89 and 690.94

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Solution

The fourth proportional to 1,716.22, 2,572.89 and 690.94 is: 1,035.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.22 : 2,572.89 = 690.94 : x
  2. Step 2: Convert to fraction form
    1,716.22/2,572.89 = 690.94/x
  3. Step 3: Cross multiply
    1,716.22x = 2,572.89 × 690.94
  4. Step 4: Simplify right side
    1,716.22x = 1,777,712.62
  5. Step 5: Solve for x
    x = 1,777,712.62/1,716.22
  6. Step 6: Final answer
    x = 1,035.83

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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.