Home / 5,174.66-7,140.99-2,816.81

Finding the Fourth Proportional to 5,174.66, 7,140.99 and 2,816.81

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Solution

The fourth proportional to 5,174.66, 7,140.99 and 2,816.81 is: 3,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.66 : 7,140.99 = 2,816.81 : x
  2. Step 2: Convert to fraction form
    5,174.66/7,140.99 = 2,816.81/x
  3. Step 3: Cross multiply
    5,174.66x = 7,140.99 × 2,816.81
  4. Step 4: Simplify right side
    5,174.66x = 20,114,776.34
  5. Step 5: Solve for x
    x = 20,114,776.34/5,174.66
  6. Step 6: Final answer
    x = 3,887.17

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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.