Home / 4,509.40-6,772.20-3,278.20

Finding the Fourth Proportional to 4,509.40, 6,772.20 and 3,278.20

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Solution

The fourth proportional to 4,509.40, 6,772.20 and 3,278.20 is: 4,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.40 : 6,772.20 = 3,278.20 : x
  2. Step 2: Convert to fraction form
    4,509.40/6,772.20 = 3,278.20/x
  3. Step 3: Cross multiply
    4,509.40x = 6,772.20 × 3,278.20
  4. Step 4: Simplify right side
    4,509.40x = 22,200,626.04
  5. Step 5: Solve for x
    x = 22,200,626.04/4,509.40
  6. Step 6: Final answer
    x = 4,923.19

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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.