Home / 5,418.03-7,476.81-3,179.46

Finding the Fourth Proportional to 5,418.03, 7,476.81 and 3,179.46

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Solution

The fourth proportional to 5,418.03, 7,476.81 and 3,179.46 is: 4,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.03 : 7,476.81 = 3,179.46 : x
  2. Step 2: Convert to fraction form
    5,418.03/7,476.81 = 3,179.46/x
  3. Step 3: Cross multiply
    5,418.03x = 7,476.81 × 3,179.46
  4. Step 4: Simplify right side
    5,418.03x = 23,772,218.32
  5. Step 5: Solve for x
    x = 23,772,218.32/5,418.03
  6. Step 6: Final answer
    x = 4,387.61

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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.