Home / 5,147.13-7,103.06-2,908.80

Finding the Fourth Proportional to 5,147.13, 7,103.06 and 2,908.80

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Solution

The fourth proportional to 5,147.13, 7,103.06 and 2,908.80 is: 4,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.13 : 7,103.06 = 2,908.80 : x
  2. Step 2: Convert to fraction form
    5,147.13/7,103.06 = 2,908.80/x
  3. Step 3: Cross multiply
    5,147.13x = 7,103.06 × 2,908.80
  4. Step 4: Simplify right side
    5,147.13x = 20,661,380.93
  5. Step 5: Solve for x
    x = 20,661,380.93/5,147.13
  6. Step 6: Final answer
    x = 4,014.16

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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.