Home / 5,175.48-7,142.25-2,817.66

Finding the Fourth Proportional to 5,175.48, 7,142.25 and 2,817.66

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Solution

The fourth proportional to 5,175.48, 7,142.25 and 2,817.66 is: 3,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.48 : 7,142.25 = 2,817.66 : x
  2. Step 2: Convert to fraction form
    5,175.48/7,142.25 = 2,817.66/x
  3. Step 3: Cross multiply
    5,175.48x = 7,142.25 × 2,817.66
  4. Step 4: Simplify right side
    5,175.48x = 20,124,396.42
  5. Step 5: Solve for x
    x = 20,124,396.42/5,175.48
  6. Step 6: Final answer
    x = 3,888.42

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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.