Home / 2,222.40-3,330.81-1,127.04

Finding the Fourth Proportional to 2,222.40, 3,330.81 and 1,127.04

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Solution

The fourth proportional to 2,222.40, 3,330.81 and 1,127.04 is: 1,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.40 : 3,330.81 = 1,127.04 : x
  2. Step 2: Convert to fraction form
    2,222.40/3,330.81 = 1,127.04/x
  3. Step 3: Cross multiply
    2,222.40x = 3,330.81 × 1,127.04
  4. Step 4: Simplify right side
    2,222.40x = 3,753,956.10
  5. Step 5: Solve for x
    x = 3,753,956.10/2,222.40
  6. Step 6: Final answer
    x = 1,689.15

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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.