Home / 3,927.67-5,419.47-2,355.79

Finding the Fourth Proportional to 3,927.67, 5,419.47 and 2,355.79

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Solution

The fourth proportional to 3,927.67, 5,419.47 and 2,355.79 is: 3,250.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.67 : 5,419.47 = 2,355.79 : x
  2. Step 2: Convert to fraction form
    3,927.67/5,419.47 = 2,355.79/x
  3. Step 3: Cross multiply
    3,927.67x = 5,419.47 × 2,355.79
  4. Step 4: Simplify right side
    3,927.67x = 12,767,133.23
  5. Step 5: Solve for x
    x = 12,767,133.23/3,927.67
  6. Step 6: Final answer
    x = 3,250.56

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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.