Home / 7,728.01-11,591.83-2,181.28

Finding the Fourth Proportional to 7,728.01, 11,591.83 and 2,181.28

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Solution

The fourth proportional to 7,728.01, 11,591.83 and 2,181.28 is: 3,271.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.01 : 11,591.83 = 2,181.28 : x
  2. Step 2: Convert to fraction form
    7,728.01/11,591.83 = 2,181.28/x
  3. Step 3: Cross multiply
    7,728.01x = 11,591.83 × 2,181.28
  4. Step 4: Simplify right side
    7,728.01x = 25,284,974.63
  5. Step 5: Solve for x
    x = 25,284,974.63/7,728.01
  6. Step 6: Final answer
    x = 3,271.86

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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.