Home / 3,900.48-5,383.02-2,222.28

Finding the Fourth Proportional to 3,900.48, 5,383.02 and 2,222.28

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Solution

The fourth proportional to 3,900.48, 5,383.02 and 2,222.28 is: 3,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.48 : 5,383.02 = 2,222.28 : x
  2. Step 2: Convert to fraction form
    3,900.48/5,383.02 = 2,222.28/x
  3. Step 3: Cross multiply
    3,900.48x = 5,383.02 × 2,222.28
  4. Step 4: Simplify right side
    3,900.48x = 11,962,577.69
  5. Step 5: Solve for x
    x = 11,962,577.69/3,900.48
  6. Step 6: Final answer
    x = 3,066.95

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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.