Home / 7,504.28-11,255.88-3,121.64

Finding the Fourth Proportional to 7,504.28, 11,255.88 and 3,121.64

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Solution

The fourth proportional to 7,504.28, 11,255.88 and 3,121.64 is: 4,682.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,504.28 : 11,255.88 = 3,121.64 : x
  2. Step 2: Convert to fraction form
    7,504.28/11,255.88 = 3,121.64/x
  3. Step 3: Cross multiply
    7,504.28x = 11,255.88 × 3,121.64
  4. Step 4: Simplify right side
    7,504.28x = 35,136,805.24
  5. Step 5: Solve for x
    x = 35,136,805.24/7,504.28
  6. Step 6: Final answer
    x = 4,682.24

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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.