Home / 7,154.31-10,727.81-3,255.39

Finding the Fourth Proportional to 7,154.31, 10,727.81 and 3,255.39

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Solution

The fourth proportional to 7,154.31, 10,727.81 and 3,255.39 is: 4,881.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.31 : 10,727.81 = 3,255.39 : x
  2. Step 2: Convert to fraction form
    7,154.31/10,727.81 = 3,255.39/x
  3. Step 3: Cross multiply
    7,154.31x = 10,727.81 × 3,255.39
  4. Step 4: Simplify right side
    7,154.31x = 34,923,189.12
  5. Step 5: Solve for x
    x = 34,923,189.12/7,154.31
  6. Step 6: Final answer
    x = 4,881.42

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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.