Home / 4,943.16-6,816.47-3,879

Finding the Fourth Proportional to 4,943.16, 6,816.47 and 3,879

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Solution

The fourth proportional to 4,943.16, 6,816.47 and 3,879 is: 5,349.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,943.16 : 6,816.47 = 3,879 : x
  2. Step 2: Convert to fraction form
    4,943.16/6,816.47 = 3,879/x
  3. Step 3: Cross multiply
    4,943.16x = 6,816.47 × 3,879
  4. Step 4: Simplify right side
    4,943.16x = 26,441,067.74
  5. Step 5: Solve for x
    x = 26,441,067.74/4,943.16
  6. Step 6: Final answer
    x = 5,349.02

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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.