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Finding the Fourth Proportional to 5,287.44, 7,931.22 and 2,514.38

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Solution

The fourth proportional to 5,287.44, 7,931.22 and 2,514.38 is: 3,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.44 : 7,931.22 = 2,514.38 : x
  2. Step 2: Convert to fraction form
    5,287.44/7,931.22 = 2,514.38/x
  3. Step 3: Cross multiply
    5,287.44x = 7,931.22 × 2,514.38
  4. Step 4: Simplify right side
    5,287.44x = 19,942,100.94
  5. Step 5: Solve for x
    x = 19,942,100.94/5,287.44
  6. Step 6: Final answer
    x = 3,771.60

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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.