Home / 3,722.20-5,137.02-3,607.48

Finding the Fourth Proportional to 3,722.20, 5,137.02 and 3,607.48

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Solution

The fourth proportional to 3,722.20, 5,137.02 and 3,607.48 is: 4,978.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.20 : 5,137.02 = 3,607.48 : x
  2. Step 2: Convert to fraction form
    3,722.20/5,137.02 = 3,607.48/x
  3. Step 3: Cross multiply
    3,722.20x = 5,137.02 × 3,607.48
  4. Step 4: Simplify right side
    3,722.20x = 18,531,696.91
  5. Step 5: Solve for x
    x = 18,531,696.91/3,722.20
  6. Step 6: Final answer
    x = 4,978.69

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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.