Home / 6,140.72-9,211.60-2,680.40

Finding the Fourth Proportional to 6,140.72, 9,211.60 and 2,680.40

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Solution

The fourth proportional to 6,140.72, 9,211.60 and 2,680.40 is: 4,020.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.72 : 9,211.60 = 2,680.40 : x
  2. Step 2: Convert to fraction form
    6,140.72/9,211.60 = 2,680.40/x
  3. Step 3: Cross multiply
    6,140.72x = 9,211.60 × 2,680.40
  4. Step 4: Simplify right side
    6,140.72x = 24,690,772.64
  5. Step 5: Solve for x
    x = 24,690,772.64/6,140.72
  6. Step 6: Final answer
    x = 4,020.83

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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.