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Finding the Fourth Proportional to 5,175.61, 7,144.42 and 5,099.68

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Solution

The fourth proportional to 5,175.61, 7,144.42 and 5,099.68 is: 7,039.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.61 : 7,144.42 = 5,099.68 : x
  2. Step 2: Convert to fraction form
    5,175.61/7,144.42 = 5,099.68/x
  3. Step 3: Cross multiply
    5,175.61x = 7,144.42 × 5,099.68
  4. Step 4: Simplify right side
    5,175.61x = 36,434,255.79
  5. Step 5: Solve for x
    x = 36,434,255.79/5,175.61
  6. Step 6: Final answer
    x = 7,039.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.