Home / 5,175.08-7,141.56-2,817.21

Finding the Fourth Proportional to 5,175.08, 7,141.56 and 2,817.21

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Solution

The fourth proportional to 5,175.08, 7,141.56 and 2,817.21 is: 3,887.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.08 : 7,141.56 = 2,817.21 : x
  2. Step 2: Convert to fraction form
    5,175.08/7,141.56 = 2,817.21/x
  3. Step 3: Cross multiply
    5,175.08x = 7,141.56 × 2,817.21
  4. Step 4: Simplify right side
    5,175.08x = 20,119,274.25
  5. Step 5: Solve for x
    x = 20,119,274.25/5,175.08
  6. Step 6: Final answer
    x = 3,887.73

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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.