Home / 5,129.76-7,076.22-3,448.20

Finding the Fourth Proportional to 5,129.76, 7,076.22 and 3,448.20

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Solution

The fourth proportional to 5,129.76, 7,076.22 and 3,448.20 is: 4,756.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.76 : 7,076.22 = 3,448.20 : x
  2. Step 2: Convert to fraction form
    5,129.76/7,076.22 = 3,448.20/x
  3. Step 3: Cross multiply
    5,129.76x = 7,076.22 × 3,448.20
  4. Step 4: Simplify right side
    5,129.76x = 24,400,221.80
  5. Step 5: Solve for x
    x = 24,400,221.80/5,129.76
  6. Step 6: Final answer
    x = 4,756.60

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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.