Home / 5,147.44-7,103.04-2,909.20

Finding the Fourth Proportional to 5,147.44, 7,103.04 and 2,909.20

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Solution

The fourth proportional to 5,147.44, 7,103.04 and 2,909.20 is: 4,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.44 : 7,103.04 = 2,909.20 : x
  2. Step 2: Convert to fraction form
    5,147.44/7,103.04 = 2,909.20/x
  3. Step 3: Cross multiply
    5,147.44x = 7,103.04 × 2,909.20
  4. Step 4: Simplify right side
    5,147.44x = 20,664,163.97
  5. Step 5: Solve for x
    x = 20,664,163.97/5,147.44
  6. Step 6: Final answer
    x = 4,014.45

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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.