Home / 3,143.88-4,715.64-1,195.20

Finding the Fourth Proportional to 3,143.88, 4,715.64 and 1,195.20

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Solution

The fourth proportional to 3,143.88, 4,715.64 and 1,195.20 is: 1,792.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.88 : 4,715.64 = 1,195.20 : x
  2. Step 2: Convert to fraction form
    3,143.88/4,715.64 = 1,195.20/x
  3. Step 3: Cross multiply
    3,143.88x = 4,715.64 × 1,195.20
  4. Step 4: Simplify right side
    3,143.88x = 5,636,132.93
  5. Step 5: Solve for x
    x = 5,636,132.93/3,143.88
  6. Step 6: Final answer
    x = 1,792.73

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1.5x scale

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.