Home / 4,122.40-6,187.20-3,298.60

Finding the Fourth Proportional to 4,122.40, 6,187.20 and 3,298.60

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Solution

The fourth proportional to 4,122.40, 6,187.20 and 3,298.60 is: 4,950.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.40 : 6,187.20 = 3,298.60 : x
  2. Step 2: Convert to fraction form
    4,122.40/6,187.20 = 3,298.60/x
  3. Step 3: Cross multiply
    4,122.40x = 6,187.20 × 3,298.60
  4. Step 4: Simplify right side
    4,122.40x = 20,409,097.92
  5. Step 5: Solve for x
    x = 20,409,097.92/4,122.40
  6. Step 6: Final answer
    x = 4,950.78

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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.