Home / 5,175.14-7,141.50-2,817.22

Finding the Fourth Proportional to 5,175.14, 7,141.50 and 2,817.22

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Solution

The fourth proportional to 5,175.14, 7,141.50 and 2,817.22 is: 3,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.14 : 7,141.50 = 2,817.22 : x
  2. Step 2: Convert to fraction form
    5,175.14/7,141.50 = 2,817.22/x
  3. Step 3: Cross multiply
    5,175.14x = 7,141.50 × 2,817.22
  4. Step 4: Simplify right side
    5,175.14x = 20,119,176.63
  5. Step 5: Solve for x
    x = 20,119,176.63/5,175.14
  6. Step 6: Final answer
    x = 3,887.66

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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.