Home / 5,422.48-8,132.72-1,912.96

Finding the Fourth Proportional to 5,422.48, 8,132.72 and 1,912.96

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Solution

The fourth proportional to 5,422.48, 8,132.72 and 1,912.96 is: 2,869.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.48 : 8,132.72 = 1,912.96 : x
  2. Step 2: Convert to fraction form
    5,422.48/8,132.72 = 1,912.96/x
  3. Step 3: Cross multiply
    5,422.48x = 8,132.72 × 1,912.96
  4. Step 4: Simplify right side
    5,422.48x = 15,557,568.05
  5. Step 5: Solve for x
    x = 15,557,568.05/5,422.48
  6. Step 6: Final answer
    x = 2,869.09

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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.