Home / 5,147.16-7,716.42-2,071.32

Finding the Fourth Proportional to 5,147.16, 7,716.42 and 2,071.32

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Solution

The fourth proportional to 5,147.16, 7,716.42 and 2,071.32 is: 3,105.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.16 : 7,716.42 = 2,071.32 : x
  2. Step 2: Convert to fraction form
    5,147.16/7,716.42 = 2,071.32/x
  3. Step 3: Cross multiply
    5,147.16x = 7,716.42 × 2,071.32
  4. Step 4: Simplify right side
    5,147.16x = 15,983,175.07
  5. Step 5: Solve for x
    x = 15,983,175.07/5,147.16
  6. Step 6: Final answer
    x = 3,105.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.