Home / 5,462.40-8,193.60-1,999.20

Finding the Fourth Proportional to 5,462.40, 8,193.60 and 1,999.20

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Solution

The fourth proportional to 5,462.40, 8,193.60 and 1,999.20 is: 2,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,462.40 : 8,193.60 = 1,999.20 : x
  2. Step 2: Convert to fraction form
    5,462.40/8,193.60 = 1,999.20/x
  3. Step 3: Cross multiply
    5,462.40x = 8,193.60 × 1,999.20
  4. Step 4: Simplify right side
    5,462.40x = 16,380,645.12
  5. Step 5: Solve for x
    x = 16,380,645.12/5,462.40
  6. Step 6: Final answer
    x = 2,998.80

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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.