Home / 5,447.12-8,171.12-1,551.56

Finding the Fourth Proportional to 5,447.12, 8,171.12 and 1,551.56

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Solution

The fourth proportional to 5,447.12, 8,171.12 and 1,551.56 is: 2,327.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.12 : 8,171.12 = 1,551.56 : x
  2. Step 2: Convert to fraction form
    5,447.12/8,171.12 = 1,551.56/x
  3. Step 3: Cross multiply
    5,447.12x = 8,171.12 × 1,551.56
  4. Step 4: Simplify right side
    5,447.12x = 12,677,945.97
  5. Step 5: Solve for x
    x = 12,677,945.97/5,447.12
  6. Step 6: Final answer
    x = 2,327.46

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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.