Home / 4,228.20-6,340.68-1,455.84

Finding the Fourth Proportional to 4,228.20, 6,340.68 and 1,455.84

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Solution

The fourth proportional to 4,228.20, 6,340.68 and 1,455.84 is: 2,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,228.20 : 6,340.68 = 1,455.84 : x
  2. Step 2: Convert to fraction form
    4,228.20/6,340.68 = 1,455.84/x
  3. Step 3: Cross multiply
    4,228.20x = 6,340.68 × 1,455.84
  4. Step 4: Simplify right side
    4,228.20x = 9,231,015.57
  5. Step 5: Solve for x
    x = 9,231,015.57/4,228.20
  6. Step 6: Final answer
    x = 2,183.20

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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.