Home / 5,180.86-7,149.24-3,056.28

Finding the Fourth Proportional to 5,180.86, 7,149.24 and 3,056.28

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Solution

The fourth proportional to 5,180.86, 7,149.24 and 3,056.28 is: 4,217.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.86 : 7,149.24 = 3,056.28 : x
  2. Step 2: Convert to fraction form
    5,180.86/7,149.24 = 3,056.28/x
  3. Step 3: Cross multiply
    5,180.86x = 7,149.24 × 3,056.28
  4. Step 4: Simplify right side
    5,180.86x = 21,850,079.23
  5. Step 5: Solve for x
    x = 21,850,079.23/5,180.86
  6. Step 6: Final answer
    x = 4,217.46

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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.