Home / 8,079.20-12,118.80-2,235.32

Finding the Fourth Proportional to 8,079.20, 12,118.80 and 2,235.32

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Solution

The fourth proportional to 8,079.20, 12,118.80 and 2,235.32 is: 3,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.20 : 12,118.80 = 2,235.32 : x
  2. Step 2: Convert to fraction form
    8,079.20/12,118.80 = 2,235.32/x
  3. Step 3: Cross multiply
    8,079.20x = 12,118.80 × 2,235.32
  4. Step 4: Simplify right side
    8,079.20x = 27,089,396.02
  5. Step 5: Solve for x
    x = 27,089,396.02/8,079.20
  6. Step 6: Final answer
    x = 3,352.98

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Similar ratio
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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.