Home / 5,174.82-7,141.26-2,816.96

Finding the Fourth Proportional to 5,174.82, 7,141.26 and 2,816.96

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Solution

The fourth proportional to 5,174.82, 7,141.26 and 2,816.96 is: 3,887.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.82 : 7,141.26 = 2,816.96 : x
  2. Step 2: Convert to fraction form
    5,174.82/7,141.26 = 2,816.96/x
  3. Step 3: Cross multiply
    5,174.82x = 7,141.26 × 2,816.96
  4. Step 4: Simplify right side
    5,174.82x = 20,116,643.77
  5. Step 5: Solve for x
    x = 20,116,643.77/5,174.82
  6. Step 6: Final answer
    x = 3,887.41

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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.