Home / 6,211.20-9,318.72-2,751.36

Finding the Fourth Proportional to 6,211.20, 9,318.72 and 2,751.36

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Solution

The fourth proportional to 6,211.20, 9,318.72 and 2,751.36 is: 4,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.20 : 9,318.72 = 2,751.36 : x
  2. Step 2: Convert to fraction form
    6,211.20/9,318.72 = 2,751.36/x
  3. Step 3: Cross multiply
    6,211.20x = 9,318.72 × 2,751.36
  4. Step 4: Simplify right side
    6,211.20x = 25,639,153.46
  5. Step 5: Solve for x
    x = 25,639,153.46/6,211.20
  6. Step 6: Final answer
    x = 4,127.89

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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.