Home / 7,747.96-11,621.84-1,904.60

Finding the Fourth Proportional to 7,747.96, 11,621.84 and 1,904.60

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Solution

The fourth proportional to 7,747.96, 11,621.84 and 1,904.60 is: 2,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.96 : 11,621.84 = 1,904.60 : x
  2. Step 2: Convert to fraction form
    7,747.96/11,621.84 = 1,904.60/x
  3. Step 3: Cross multiply
    7,747.96x = 11,621.84 × 1,904.60
  4. Step 4: Simplify right side
    7,747.96x = 22,134,956.46
  5. Step 5: Solve for x
    x = 22,134,956.46/7,747.96
  6. Step 6: Final answer
    x = 2,856.88

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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.