Home / 5,218.14-7,201.02-3,122.28

Finding the Fourth Proportional to 5,218.14, 7,201.02 and 3,122.28

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Solution

The fourth proportional to 5,218.14, 7,201.02 and 3,122.28 is: 4,308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.14 : 7,201.02 = 3,122.28 : x
  2. Step 2: Convert to fraction form
    5,218.14/7,201.02 = 3,122.28/x
  3. Step 3: Cross multiply
    5,218.14x = 7,201.02 × 3,122.28
  4. Step 4: Simplify right side
    5,218.14x = 22,483,600.73
  5. Step 5: Solve for x
    x = 22,483,600.73/5,218.14
  6. Step 6: Final answer
    x = 4,308.74

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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.