Home / 7,949.13-11,921.41-3,205.29

Finding the Fourth Proportional to 7,949.13, 11,921.41 and 3,205.29

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Solution

The fourth proportional to 7,949.13, 11,921.41 and 3,205.29 is: 4,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.13 : 11,921.41 = 3,205.29 : x
  2. Step 2: Convert to fraction form
    7,949.13/11,921.41 = 3,205.29/x
  3. Step 3: Cross multiply
    7,949.13x = 11,921.41 × 3,205.29
  4. Step 4: Simplify right side
    7,949.13x = 38,211,576.26
  5. Step 5: Solve for x
    x = 38,211,576.26/7,949.13
  6. Step 6: Final answer
    x = 4,807.01

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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.