Home / 3,928.85-5,894.15-1,297.18

Finding the Fourth Proportional to 3,928.85, 5,894.15 and 1,297.18

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Solution

The fourth proportional to 3,928.85, 5,894.15 and 1,297.18 is: 1,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.85 : 5,894.15 = 1,297.18 : x
  2. Step 2: Convert to fraction form
    3,928.85/5,894.15 = 1,297.18/x
  3. Step 3: Cross multiply
    3,928.85x = 5,894.15 × 1,297.18
  4. Step 4: Simplify right side
    3,928.85x = 7,645,781.68
  5. Step 5: Solve for x
    x = 7,645,781.68/3,928.85
  6. Step 6: Final answer
    x = 1,946.06

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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.