Home / 2,420.55-3,620.70-2,204.28

Finding the Fourth Proportional to 2,420.55, 3,620.70 and 2,204.28

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Solution

The fourth proportional to 2,420.55, 3,620.70 and 2,204.28 is: 3,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.55 : 3,620.70 = 2,204.28 : x
  2. Step 2: Convert to fraction form
    2,420.55/3,620.70 = 2,204.28/x
  3. Step 3: Cross multiply
    2,420.55x = 3,620.70 × 2,204.28
  4. Step 4: Simplify right side
    2,420.55x = 7,981,036.60
  5. Step 5: Solve for x
    x = 7,981,036.60/2,420.55
  6. Step 6: Final answer
    x = 3,297.20

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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.