Home / 1,716.96-2,369.98-1,221.04

Finding the Fourth Proportional to 1,716.96, 2,369.98 and 1,221.04

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Solution

The fourth proportional to 1,716.96, 2,369.98 and 1,221.04 is: 1,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.96 : 2,369.98 = 1,221.04 : x
  2. Step 2: Convert to fraction form
    1,716.96/2,369.98 = 1,221.04/x
  3. Step 3: Cross multiply
    1,716.96x = 2,369.98 × 1,221.04
  4. Step 4: Simplify right side
    1,716.96x = 2,893,844.87
  5. Step 5: Solve for x
    x = 2,893,844.87/1,716.96
  6. Step 6: Final answer
    x = 1,685.44

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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.