Home / 2,207.18-3,311.58-974.54

Finding the Fourth Proportional to 2,207.18, 3,311.58 and 974.54

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Solution

The fourth proportional to 2,207.18, 3,311.58 and 974.54 is: 1,462.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.18 : 3,311.58 = 974.54 : x
  2. Step 2: Convert to fraction form
    2,207.18/3,311.58 = 974.54/x
  3. Step 3: Cross multiply
    2,207.18x = 3,311.58 × 974.54
  4. Step 4: Simplify right side
    2,207.18x = 3,227,267.17
  5. Step 5: Solve for x
    x = 3,227,267.17/2,207.18
  6. Step 6: Final answer
    x = 1,462.17

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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.