Home / 5,241.30-7,865.59-3,387.81

Finding the Fourth Proportional to 5,241.30, 7,865.59 and 3,387.81

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Solution

The fourth proportional to 5,241.30, 7,865.59 and 3,387.81 is: 5,084.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.30 : 7,865.59 = 3,387.81 : x
  2. Step 2: Convert to fraction form
    5,241.30/7,865.59 = 3,387.81/x
  3. Step 3: Cross multiply
    5,241.30x = 7,865.59 × 3,387.81
  4. Step 4: Simplify right side
    5,241.30x = 26,647,124.46
  5. Step 5: Solve for x
    x = 26,647,124.46/5,241.30
  6. Step 6: Final answer
    x = 5,084.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.