Home / 5,418.99-7,476.93-3,180.75

Finding the Fourth Proportional to 5,418.99, 7,476.93 and 3,180.75

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Solution

The fourth proportional to 5,418.99, 7,476.93 and 3,180.75 is: 4,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.99 : 7,476.93 = 3,180.75 : x
  2. Step 2: Convert to fraction form
    5,418.99/7,476.93 = 3,180.75/x
  3. Step 3: Cross multiply
    5,418.99x = 7,476.93 × 3,180.75
  4. Step 4: Simplify right side
    5,418.99x = 23,782,245.10
  5. Step 5: Solve for x
    x = 23,782,245.10/5,418.99
  6. Step 6: Final answer
    x = 4,388.69

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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.