Home / 4,985.30-6,879.71-2,747.17

Finding the Fourth Proportional to 4,985.30, 6,879.71 and 2,747.17

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Solution

The fourth proportional to 4,985.30, 6,879.71 and 2,747.17 is: 3,791.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.30 : 6,879.71 = 2,747.17 : x
  2. Step 2: Convert to fraction form
    4,985.30/6,879.71 = 2,747.17/x
  3. Step 3: Cross multiply
    4,985.30x = 6,879.71 × 2,747.17
  4. Step 4: Simplify right side
    4,985.30x = 18,899,732.92
  5. Step 5: Solve for x
    x = 18,899,732.92/4,985.30
  6. Step 6: Final answer
    x = 3,791.09

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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.