Home / 3,143.53-4,716.37-1,972.12

Finding the Fourth Proportional to 3,143.53, 4,716.37 and 1,972.12

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Solution

The fourth proportional to 3,143.53, 4,716.37 and 1,972.12 is: 2,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.53 : 4,716.37 = 1,972.12 : x
  2. Step 2: Convert to fraction form
    3,143.53/4,716.37 = 1,972.12/x
  3. Step 3: Cross multiply
    3,143.53x = 4,716.37 × 1,972.12
  4. Step 4: Simplify right side
    3,143.53x = 9,301,247.60
  5. Step 5: Solve for x
    x = 9,301,247.60/3,143.53
  6. Step 6: Final answer
    x = 2,958.85

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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.