Home / 5,174.96-7,141.23-2,817.11

Finding the Fourth Proportional to 5,174.96, 7,141.23 and 2,817.11

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Solution

The fourth proportional to 5,174.96, 7,141.23 and 2,817.11 is: 3,887.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.96 : 7,141.23 = 2,817.11 : x
  2. Step 2: Convert to fraction form
    5,174.96/7,141.23 = 2,817.11/x
  3. Step 3: Cross multiply
    5,174.96x = 7,141.23 × 2,817.11
  4. Step 4: Simplify right side
    5,174.96x = 20,117,630.45
  5. Step 5: Solve for x
    x = 20,117,630.45/5,174.96
  6. Step 6: Final answer
    x = 3,887.49

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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.