Home / 5,214.96-7,196.49-2,976.78

Finding the Fourth Proportional to 5,214.96, 7,196.49 and 2,976.78

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Solution

The fourth proportional to 5,214.96, 7,196.49 and 2,976.78 is: 4,107.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.96 : 7,196.49 = 2,976.78 : x
  2. Step 2: Convert to fraction form
    5,214.96/7,196.49 = 2,976.78/x
  3. Step 3: Cross multiply
    5,214.96x = 7,196.49 × 2,976.78
  4. Step 4: Simplify right side
    5,214.96x = 21,422,367.50
  5. Step 5: Solve for x
    x = 21,422,367.50/5,214.96
  6. Step 6: Final answer
    x = 4,107.87

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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.