Home / 6,619.97-9,135.55-3,635.80

Finding the Fourth Proportional to 6,619.97, 9,135.55 and 3,635.80

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Solution

The fourth proportional to 6,619.97, 9,135.55 and 3,635.80 is: 5,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.97 : 9,135.55 = 3,635.80 : x
  2. Step 2: Convert to fraction form
    6,619.97/9,135.55 = 3,635.80/x
  3. Step 3: Cross multiply
    6,619.97x = 9,135.55 × 3,635.80
  4. Step 4: Simplify right side
    6,619.97x = 33,215,032.69
  5. Step 5: Solve for x
    x = 33,215,032.69/6,619.97
  6. Step 6: Final answer
    x = 5,017.40

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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.