Home / 5,418.49-7,476.24-3,180.25

Finding the Fourth Proportional to 5,418.49, 7,476.24 and 3,180.25

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Solution

The fourth proportional to 5,418.49, 7,476.24 and 3,180.25 is: 4,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.49 : 7,476.24 = 3,180.25 : x
  2. Step 2: Convert to fraction form
    5,418.49/7,476.24 = 3,180.25/x
  3. Step 3: Cross multiply
    5,418.49x = 7,476.24 × 3,180.25
  4. Step 4: Simplify right side
    5,418.49x = 23,776,274.88
  5. Step 5: Solve for x
    x = 23,776,274.88/5,418.49
  6. Step 6: Final answer
    x = 4,387.99

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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.