Home / 5,698.11-7,863.38-3,180.20

Finding the Fourth Proportional to 5,698.11, 7,863.38 and 3,180.20

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Solution

The fourth proportional to 5,698.11, 7,863.38 and 3,180.20 is: 4,388.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,698.11 : 7,863.38 = 3,180.20 : x
  2. Step 2: Convert to fraction form
    5,698.11/7,863.38 = 3,180.20/x
  3. Step 3: Cross multiply
    5,698.11x = 7,863.38 × 3,180.20
  4. Step 4: Simplify right side
    5,698.11x = 25,007,077.78
  5. Step 5: Solve for x
    x = 25,007,077.78/5,698.11
  6. Step 6: Final answer
    x = 4,388.66

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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.