Home / 7,902.20-11,845.92-3,951.02

Finding the Fourth Proportional to 7,902.20, 11,845.92 and 3,951.02

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Solution

The fourth proportional to 7,902.20, 11,845.92 and 3,951.02 is: 5,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.20 : 11,845.92 = 3,951.02 : x
  2. Step 2: Convert to fraction form
    7,902.20/11,845.92 = 3,951.02/x
  3. Step 3: Cross multiply
    7,902.20x = 11,845.92 × 3,951.02
  4. Step 4: Simplify right side
    7,902.20x = 46,803,466.84
  5. Step 5: Solve for x
    x = 46,803,466.84/7,902.20
  6. Step 6: Final answer
    x = 5,922.84

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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.