Home / 3,811.98-5,261.35-2,320.38

Finding the Fourth Proportional to 3,811.98, 5,261.35 and 2,320.38

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Solution

The fourth proportional to 3,811.98, 5,261.35 and 2,320.38 is: 3,202.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.98 : 5,261.35 = 2,320.38 : x
  2. Step 2: Convert to fraction form
    3,811.98/5,261.35 = 2,320.38/x
  3. Step 3: Cross multiply
    3,811.98x = 5,261.35 × 2,320.38
  4. Step 4: Simplify right side
    3,811.98x = 12,208,293.40
  5. Step 5: Solve for x
    x = 12,208,293.40/3,811.98
  6. Step 6: Final answer
    x = 3,202.62

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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.