Home / 5,415.25-7,476.49-4,422.90

Finding the Fourth Proportional to 5,415.25, 7,476.49 and 4,422.90

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Solution

The fourth proportional to 5,415.25, 7,476.49 and 4,422.90 is: 6,106.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.25 : 7,476.49 = 4,422.90 : x
  2. Step 2: Convert to fraction form
    5,415.25/7,476.49 = 4,422.90/x
  3. Step 3: Cross multiply
    5,415.25x = 7,476.49 × 4,422.90
  4. Step 4: Simplify right side
    5,415.25x = 33,067,767.62
  5. Step 5: Solve for x
    x = 33,067,767.62/5,415.25
  6. Step 6: Final answer
    x = 6,106.42

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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.