Home / 3,922.13-5,412.74-2,351.13

Finding the Fourth Proportional to 3,922.13, 5,412.74 and 2,351.13

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Solution

The fourth proportional to 3,922.13, 5,412.74 and 2,351.13 is: 3,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.13 : 5,412.74 = 2,351.13 : x
  2. Step 2: Convert to fraction form
    3,922.13/5,412.74 = 2,351.13/x
  3. Step 3: Cross multiply
    3,922.13x = 5,412.74 × 2,351.13
  4. Step 4: Simplify right side
    3,922.13x = 12,726,043.64
  5. Step 5: Solve for x
    x = 12,726,043.64/3,922.13
  6. Step 6: Final answer
    x = 3,244.68

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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.