Home / 5,427.70-8,141.55-1,729.90

Finding the Fourth Proportional to 5,427.70, 8,141.55 and 1,729.90

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Solution

The fourth proportional to 5,427.70, 8,141.55 and 1,729.90 is: 2,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.70 : 8,141.55 = 1,729.90 : x
  2. Step 2: Convert to fraction form
    5,427.70/8,141.55 = 1,729.90/x
  3. Step 3: Cross multiply
    5,427.70x = 8,141.55 × 1,729.90
  4. Step 4: Simplify right side
    5,427.70x = 14,084,067.35
  5. Step 5: Solve for x
    x = 14,084,067.35/5,427.70
  6. Step 6: Final answer
    x = 2,594.85

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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.