Home / 4,022.78-5,550.40-2,428.17

Finding the Fourth Proportional to 4,022.78, 5,550.40 and 2,428.17

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Solution

The fourth proportional to 4,022.78, 5,550.40 and 2,428.17 is: 3,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,022.78 : 5,550.40 = 2,428.17 : x
  2. Step 2: Convert to fraction form
    4,022.78/5,550.40 = 2,428.17/x
  3. Step 3: Cross multiply
    4,022.78x = 5,550.40 × 2,428.17
  4. Step 4: Simplify right side
    4,022.78x = 13,477,308.70
  5. Step 5: Solve for x
    x = 13,477,308.70/4,022.78
  6. Step 6: Final answer
    x = 3,350.25

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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.