Home / 3,879.28-5,814.87-1,927.18

Finding the Fourth Proportional to 3,879.28, 5,814.87 and 1,927.18

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Solution

The fourth proportional to 3,879.28, 5,814.87 and 1,927.18 is: 2,888.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.28 : 5,814.87 = 1,927.18 : x
  2. Step 2: Convert to fraction form
    3,879.28/5,814.87 = 1,927.18/x
  3. Step 3: Cross multiply
    3,879.28x = 5,814.87 × 1,927.18
  4. Step 4: Simplify right side
    3,879.28x = 11,206,301.17
  5. Step 5: Solve for x
    x = 11,206,301.17/3,879.28
  6. Step 6: Final answer
    x = 2,888.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.