Home / 4,622.20-6,928.80-2,645.80

Finding the Fourth Proportional to 4,622.20, 6,928.80 and 2,645.80

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Solution

The fourth proportional to 4,622.20, 6,928.80 and 2,645.80 is: 3,966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,622.20 : 6,928.80 = 2,645.80 : x
  2. Step 2: Convert to fraction form
    4,622.20/6,928.80 = 2,645.80/x
  3. Step 3: Cross multiply
    4,622.20x = 6,928.80 × 2,645.80
  4. Step 4: Simplify right side
    4,622.20x = 18,332,219.04
  5. Step 5: Solve for x
    x = 18,332,219.04/4,622.20
  6. Step 6: Final answer
    x = 3,966.12

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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.