Home / 5,175.61-7,138.49-3,285.55

Finding the Fourth Proportional to 5,175.61, 7,138.49 and 3,285.55

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Solution

The fourth proportional to 5,175.61, 7,138.49 and 3,285.55 is: 4,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.61 : 7,138.49 = 3,285.55 : x
  2. Step 2: Convert to fraction form
    5,175.61/7,138.49 = 3,285.55/x
  3. Step 3: Cross multiply
    5,175.61x = 7,138.49 × 3,285.55
  4. Step 4: Simplify right side
    5,175.61x = 23,453,858.31
  5. Step 5: Solve for x
    x = 23,453,858.31/5,175.61
  6. Step 6: Final answer
    x = 4,531.61

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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.