Home / 2,204.20-3,307.02-1,280.80

Finding the Fourth Proportional to 2,204.20, 3,307.02 and 1,280.80

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Solution

The fourth proportional to 2,204.20, 3,307.02 and 1,280.80 is: 1,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,204.20 : 3,307.02 = 1,280.80 : x
  2. Step 2: Convert to fraction form
    2,204.20/3,307.02 = 1,280.80/x
  3. Step 3: Cross multiply
    2,204.20x = 3,307.02 × 1,280.80
  4. Step 4: Simplify right side
    2,204.20x = 4,235,631.22
  5. Step 5: Solve for x
    x = 4,235,631.22/2,204.20
  6. Step 6: Final answer
    x = 1,921.62

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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.