Home / 3,147.53-4,717.85-1,297.69

Finding the Fourth Proportional to 3,147.53, 4,717.85 and 1,297.69

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Solution

The fourth proportional to 3,147.53, 4,717.85 and 1,297.69 is: 1,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.53 : 4,717.85 = 1,297.69 : x
  2. Step 2: Convert to fraction form
    3,147.53/4,717.85 = 1,297.69/x
  3. Step 3: Cross multiply
    3,147.53x = 4,717.85 × 1,297.69
  4. Step 4: Simplify right side
    3,147.53x = 6,122,288.48
  5. Step 5: Solve for x
    x = 6,122,288.48/3,147.53
  6. Step 6: Final answer
    x = 1,945.11

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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.