Home / 6,625.78-9,143.54-3,641.60

Finding the Fourth Proportional to 6,625.78, 9,143.54 and 3,641.60

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Solution

The fourth proportional to 6,625.78, 9,143.54 and 3,641.60 is: 5,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,625.78 : 9,143.54 = 3,641.60 : x
  2. Step 2: Convert to fraction form
    6,625.78/9,143.54 = 3,641.60/x
  3. Step 3: Cross multiply
    6,625.78x = 9,143.54 × 3,641.60
  4. Step 4: Simplify right side
    6,625.78x = 33,297,115.26
  5. Step 5: Solve for x
    x = 33,297,115.26/6,625.78
  6. Step 6: Final answer
    x = 5,025.39

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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.