Home / 6,619.78-9,132.94-4,099.26

Finding the Fourth Proportional to 6,619.78, 9,132.94 and 4,099.26

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Solution

The fourth proportional to 6,619.78, 9,132.94 and 4,099.26 is: 5,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.78 : 9,132.94 = 4,099.26 : x
  2. Step 2: Convert to fraction form
    6,619.78/9,132.94 = 4,099.26/x
  3. Step 3: Cross multiply
    6,619.78x = 9,132.94 × 4,099.26
  4. Step 4: Simplify right side
    6,619.78x = 37,438,295.62
  5. Step 5: Solve for x
    x = 37,438,295.62/6,619.78
  6. Step 6: Final answer
    x = 5,655.52

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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.