Home / 2,220.30-3,330.57-1,397.34

Finding the Fourth Proportional to 2,220.30, 3,330.57 and 1,397.34

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Solution

The fourth proportional to 2,220.30, 3,330.57 and 1,397.34 is: 2,096.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.30 : 3,330.57 = 1,397.34 : x
  2. Step 2: Convert to fraction form
    2,220.30/3,330.57 = 1,397.34/x
  3. Step 3: Cross multiply
    2,220.30x = 3,330.57 × 1,397.34
  4. Step 4: Simplify right side
    2,220.30x = 4,653,938.68
  5. Step 5: Solve for x
    x = 4,653,938.68/2,220.30
  6. Step 6: Final answer
    x = 2,096.09

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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.