Home / 5,147.22-7,103.16-2,789.37

Finding the Fourth Proportional to 5,147.22, 7,103.16 and 2,789.37

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Solution

The fourth proportional to 5,147.22, 7,103.16 and 2,789.37 is: 3,849.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.22 : 7,103.16 = 2,789.37 : x
  2. Step 2: Convert to fraction form
    5,147.22/7,103.16 = 2,789.37/x
  3. Step 3: Cross multiply
    5,147.22x = 7,103.16 × 2,789.37
  4. Step 4: Simplify right side
    5,147.22x = 19,813,341.41
  5. Step 5: Solve for x
    x = 19,813,341.41/5,147.22
  6. Step 6: Final answer
    x = 3,849.33

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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.