Home / 3,143.21-4,716.63-2,974.32

Finding the Fourth Proportional to 3,143.21, 4,716.63 and 2,974.32

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Solution

The fourth proportional to 3,143.21, 4,716.63 and 2,974.32 is: 4,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.21 : 4,716.63 = 2,974.32 : x
  2. Step 2: Convert to fraction form
    3,143.21/4,716.63 = 2,974.32/x
  3. Step 3: Cross multiply
    3,143.21x = 4,716.63 × 2,974.32
  4. Step 4: Simplify right side
    3,143.21x = 14,028,766.94
  5. Step 5: Solve for x
    x = 14,028,766.94/3,143.21
  6. Step 6: Final answer
    x = 4,463.20

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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.