Home / 5,175.80-7,766.10-2,215.14

Finding the Fourth Proportional to 5,175.80, 7,766.10 and 2,215.14

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Solution

The fourth proportional to 5,175.80, 7,766.10 and 2,215.14 is: 3,323.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.80 : 7,766.10 = 2,215.14 : x
  2. Step 2: Convert to fraction form
    5,175.80/7,766.10 = 2,215.14/x
  3. Step 3: Cross multiply
    5,175.80x = 7,766.10 × 2,215.14
  4. Step 4: Simplify right side
    5,175.80x = 17,203,027.88
  5. Step 5: Solve for x
    x = 17,203,027.88/5,175.80
  6. Step 6: Final answer
    x = 3,323.75

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1.5x scale

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.