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Finding the Fourth Proportional to 3,904.32, 5,856.48 and 1,953.84

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Solution

The fourth proportional to 3,904.32, 5,856.48 and 1,953.84 is: 2,930.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.32 : 5,856.48 = 1,953.84 : x
  2. Step 2: Convert to fraction form
    3,904.32/5,856.48 = 1,953.84/x
  3. Step 3: Cross multiply
    3,904.32x = 5,856.48 × 1,953.84
  4. Step 4: Simplify right side
    3,904.32x = 11,442,624.88
  5. Step 5: Solve for x
    x = 11,442,624.88/3,904.32
  6. Step 6: Final answer
    x = 2,930.76

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Similar ratio
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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.