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Finding the Fourth Proportional to 4,609.92, 6,915.06 and 3,921.36

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Solution

The fourth proportional to 4,609.92, 6,915.06 and 3,921.36 is: 5,882.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.92 : 6,915.06 = 3,921.36 : x
  2. Step 2: Convert to fraction form
    4,609.92/6,915.06 = 3,921.36/x
  3. Step 3: Cross multiply
    4,609.92x = 6,915.06 × 3,921.36
  4. Step 4: Simplify right side
    4,609.92x = 27,116,439.68
  5. Step 5: Solve for x
    x = 27,116,439.68/4,609.92
  6. Step 6: Final answer
    x = 5,882.19

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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.