Home / 3,847.17-5,308.97-2,431.62

Finding the Fourth Proportional to 3,847.17, 5,308.97 and 2,431.62

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Solution

The fourth proportional to 3,847.17, 5,308.97 and 2,431.62 is: 3,355.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.17 : 5,308.97 = 2,431.62 : x
  2. Step 2: Convert to fraction form
    3,847.17/5,308.97 = 2,431.62/x
  3. Step 3: Cross multiply
    3,847.17x = 5,308.97 × 2,431.62
  4. Step 4: Simplify right side
    3,847.17x = 12,909,397.63
  5. Step 5: Solve for x
    x = 12,909,397.63/3,847.17
  6. Step 6: Final answer
    x = 3,355.56

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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.