Home / 5,175.43-7,141.99-2,817.56

Finding the Fourth Proportional to 5,175.43, 7,141.99 and 2,817.56

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Solution

The fourth proportional to 5,175.43, 7,141.99 and 2,817.56 is: 3,888.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.43 : 7,141.99 = 2,817.56 : x
  2. Step 2: Convert to fraction form
    5,175.43/7,141.99 = 2,817.56/x
  3. Step 3: Cross multiply
    5,175.43x = 7,141.99 × 2,817.56
  4. Step 4: Simplify right side
    5,175.43x = 20,122,985.34
  5. Step 5: Solve for x
    x = 20,122,985.34/5,175.43
  6. Step 6: Final answer
    x = 3,888.18

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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.