Home / 7,747.92-11,621.79-1,904.58

Finding the Fourth Proportional to 7,747.92, 11,621.79 and 1,904.58

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Solution

The fourth proportional to 7,747.92, 11,621.79 and 1,904.58 is: 2,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.92 : 11,621.79 = 1,904.58 : x
  2. Step 2: Convert to fraction form
    7,747.92/11,621.79 = 1,904.58/x
  3. Step 3: Cross multiply
    7,747.92x = 11,621.79 × 1,904.58
  4. Step 4: Simplify right side
    7,747.92x = 22,134,628.80
  5. Step 5: Solve for x
    x = 22,134,628.80/7,747.92
  6. Step 6: Final answer
    x = 2,856.85

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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.