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Finding the Fourth Proportional to 3,447.88, 5,171.68 and 2,984.15

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Solution

The fourth proportional to 3,447.88, 5,171.68 and 2,984.15 is: 4,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.88 : 5,171.68 = 2,984.15 : x
  2. Step 2: Convert to fraction form
    3,447.88/5,171.68 = 2,984.15/x
  3. Step 3: Cross multiply
    3,447.88x = 5,171.68 × 2,984.15
  4. Step 4: Simplify right side
    3,447.88x = 15,433,068.87
  5. Step 5: Solve for x
    x = 15,433,068.87/3,447.88
  6. Step 6: Final answer
    x = 4,476.10

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1.5x scale

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.