Home / 5,121.53-7,067.56-3,132.08

Finding the Fourth Proportional to 5,121.53, 7,067.56 and 3,132.08

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Solution

The fourth proportional to 5,121.53, 7,067.56 and 3,132.08 is: 4,322.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.53 : 7,067.56 = 3,132.08 : x
  2. Step 2: Convert to fraction form
    5,121.53/7,067.56 = 3,132.08/x
  3. Step 3: Cross multiply
    5,121.53x = 7,067.56 × 3,132.08
  4. Step 4: Simplify right side
    5,121.53x = 22,136,163.32
  5. Step 5: Solve for x
    x = 22,136,163.32/5,121.53
  6. Step 6: Final answer
    x = 4,322.18

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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.