Home / 1,241.04-1,712.43-717.12

Finding the Fourth Proportional to 1,241.04, 1,712.43 and 717.12

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Solution

The fourth proportional to 1,241.04, 1,712.43 and 717.12 is: 989.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241.04 : 1,712.43 = 717.12 : x
  2. Step 2: Convert to fraction form
    1,241.04/1,712.43 = 717.12/x
  3. Step 3: Cross multiply
    1,241.04x = 1,712.43 × 717.12
  4. Step 4: Simplify right side
    1,241.04x = 1,228,017.80
  5. Step 5: Solve for x
    x = 1,228,017.80/1,241.04
  6. Step 6: Final answer
    x = 989.51

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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.