Home / 5,551.55-8,327.12-1,391.59

Finding the Fourth Proportional to 5,551.55, 8,327.12 and 1,391.59

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Solution

The fourth proportional to 5,551.55, 8,327.12 and 1,391.59 is: 2,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.55 : 8,327.12 = 1,391.59 : x
  2. Step 2: Convert to fraction form
    5,551.55/8,327.12 = 1,391.59/x
  3. Step 3: Cross multiply
    5,551.55x = 8,327.12 × 1,391.59
  4. Step 4: Simplify right side
    5,551.55x = 11,587,924.78
  5. Step 5: Solve for x
    x = 11,587,924.78/5,551.55
  6. Step 6: Final answer
    x = 2,087.33

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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.