Home / 4,028.62-5,555.28-3,938.08

Finding the Fourth Proportional to 4,028.62, 5,555.28 and 3,938.08

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Solution

The fourth proportional to 4,028.62, 5,555.28 and 3,938.08 is: 5,430.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,028.62 : 5,555.28 = 3,938.08 : x
  2. Step 2: Convert to fraction form
    4,028.62/5,555.28 = 3,938.08/x
  3. Step 3: Cross multiply
    4,028.62x = 5,555.28 × 3,938.08
  4. Step 4: Simplify right side
    4,028.62x = 21,877,137.06
  5. Step 5: Solve for x
    x = 21,877,137.06/4,028.62
  6. Step 6: Final answer
    x = 5,430.43

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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.