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Finding the Fourth Proportional to 5,551.79, 8,327.67 and 1,447.79

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Solution

The fourth proportional to 5,551.79, 8,327.67 and 1,447.79 is: 2,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.79 : 8,327.67 = 1,447.79 : x
  2. Step 2: Convert to fraction form
    5,551.79/8,327.67 = 1,447.79/x
  3. Step 3: Cross multiply
    5,551.79x = 8,327.67 × 1,447.79
  4. Step 4: Simplify right side
    5,551.79x = 12,056,675.71
  5. Step 5: Solve for x
    x = 12,056,675.71/5,551.79
  6. Step 6: Final answer
    x = 2,171.68

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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.