Home / 5,180.13-7,151.42-3,857.00

Finding the Fourth Proportional to 5,180.13, 7,151.42 and 3,857.00

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Solution

The fourth proportional to 5,180.13, 7,151.42 and 3,857.00 is: 5,324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.13 : 7,151.42 = 3,857.00 : x
  2. Step 2: Convert to fraction form
    5,180.13/7,151.42 = 3,857.00/x
  3. Step 3: Cross multiply
    5,180.13x = 7,151.42 × 3,857.00
  4. Step 4: Simplify right side
    5,180.13x = 27,583,000.83
  5. Step 5: Solve for x
    x = 27,583,000.83/5,180.13
  6. Step 6: Final answer
    x = 5,324.77

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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.