Home / 3,926.88-5,419.56-2,355.84

Finding the Fourth Proportional to 3,926.88, 5,419.56 and 2,355.84

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Solution

The fourth proportional to 3,926.88, 5,419.56 and 2,355.84 is: 3,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.88 : 5,419.56 = 2,355.84 : x
  2. Step 2: Convert to fraction form
    3,926.88/5,419.56 = 2,355.84/x
  3. Step 3: Cross multiply
    3,926.88x = 5,419.56 × 2,355.84
  4. Step 4: Simplify right side
    3,926.88x = 12,767,616.23
  5. Step 5: Solve for x
    x = 12,767,616.23/3,926.88
  6. Step 6: Final answer
    x = 3,251.34

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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.