Home / 5,175.87-7,759.40-2,055.15

Finding the Fourth Proportional to 5,175.87, 7,759.40 and 2,055.15

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Solution

The fourth proportional to 5,175.87, 7,759.40 and 2,055.15 is: 3,080.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.87 : 7,759.40 = 2,055.15 : x
  2. Step 2: Convert to fraction form
    5,175.87/7,759.40 = 2,055.15/x
  3. Step 3: Cross multiply
    5,175.87x = 7,759.40 × 2,055.15
  4. Step 4: Simplify right side
    5,175.87x = 15,946,720.63
  5. Step 5: Solve for x
    x = 15,946,720.63/5,175.87
  6. Step 6: Final answer
    x = 3,080.97

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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.