Home / 4,099.20-6,148.80-1,327.80

Finding the Fourth Proportional to 4,099.20, 6,148.80 and 1,327.80

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Solution

The fourth proportional to 4,099.20, 6,148.80 and 1,327.80 is: 1,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,099.20 : 6,148.80 = 1,327.80 : x
  2. Step 2: Convert to fraction form
    4,099.20/6,148.80 = 1,327.80/x
  3. Step 3: Cross multiply
    4,099.20x = 6,148.80 × 1,327.80
  4. Step 4: Simplify right side
    4,099.20x = 8,164,376.64
  5. Step 5: Solve for x
    x = 8,164,376.64/4,099.20
  6. Step 6: Final answer
    x = 1,991.70

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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.