Home / 5,175.12-7,758.36-2,053.19

Finding the Fourth Proportional to 5,175.12, 7,758.36 and 2,053.19

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Solution

The fourth proportional to 5,175.12, 7,758.36 and 2,053.19 is: 3,078.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.12 : 7,758.36 = 2,053.19 : x
  2. Step 2: Convert to fraction form
    5,175.12/7,758.36 = 2,053.19/x
  3. Step 3: Cross multiply
    5,175.12x = 7,758.36 × 2,053.19
  4. Step 4: Simplify right side
    5,175.12x = 15,929,348.38
  5. Step 5: Solve for x
    x = 15,929,348.38/5,175.12
  6. Step 6: Final answer
    x = 3,078.06

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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.