Home / 3,153.11-4,351.32-1,974.87

Finding the Fourth Proportional to 3,153.11, 4,351.32 and 1,974.87

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Solution

The fourth proportional to 3,153.11, 4,351.32 and 1,974.87 is: 2,725.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.11 : 4,351.32 = 1,974.87 : x
  2. Step 2: Convert to fraction form
    3,153.11/4,351.32 = 1,974.87/x
  3. Step 3: Cross multiply
    3,153.11x = 4,351.32 × 1,974.87
  4. Step 4: Simplify right side
    3,153.11x = 8,593,291.33
  5. Step 5: Solve for x
    x = 8,593,291.33/3,153.11
  6. Step 6: Final answer
    x = 2,725.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.