Home / 4,680.32-6,451.92-3,928.64

Finding the Fourth Proportional to 4,680.32, 6,451.92 and 3,928.64

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Solution

The fourth proportional to 4,680.32, 6,451.92 and 3,928.64 is: 5,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.32 : 6,451.92 = 3,928.64 : x
  2. Step 2: Convert to fraction form
    4,680.32/6,451.92 = 3,928.64/x
  3. Step 3: Cross multiply
    4,680.32x = 6,451.92 × 3,928.64
  4. Step 4: Simplify right side
    4,680.32x = 25,347,270.99
  5. Step 5: Solve for x
    x = 25,347,270.99/4,680.32
  6. Step 6: Final answer
    x = 5,415.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.