Home / 3,721.13-5,135.02-2,228.16

Finding the Fourth Proportional to 3,721.13, 5,135.02 and 2,228.16

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Solution

The fourth proportional to 3,721.13, 5,135.02 and 2,228.16 is: 3,074.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.13 : 5,135.02 = 2,228.16 : x
  2. Step 2: Convert to fraction form
    3,721.13/5,135.02 = 2,228.16/x
  3. Step 3: Cross multiply
    3,721.13x = 5,135.02 × 2,228.16
  4. Step 4: Simplify right side
    3,721.13x = 11,441,646.16
  5. Step 5: Solve for x
    x = 11,441,646.16/3,721.13
  6. Step 6: Final answer
    x = 3,074.78

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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.