Home / 5,249.97-7,869.51-2,784.15

Finding the Fourth Proportional to 5,249.97, 7,869.51 and 2,784.15

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Solution

The fourth proportional to 5,249.97, 7,869.51 and 2,784.15 is: 4,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.97 : 7,869.51 = 2,784.15 : x
  2. Step 2: Convert to fraction form
    5,249.97/7,869.51 = 2,784.15/x
  3. Step 3: Cross multiply
    5,249.97x = 7,869.51 × 2,784.15
  4. Step 4: Simplify right side
    5,249.97x = 21,909,896.27
  5. Step 5: Solve for x
    x = 21,909,896.27/5,249.97
  6. Step 6: Final answer
    x = 4,173.34

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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.