Home / 2,488.90-3,733.80-1,028.20

Finding the Fourth Proportional to 2,488.90, 3,733.80 and 1,028.20

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Solution

The fourth proportional to 2,488.90, 3,733.80 and 1,028.20 is: 1,542.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.90 : 3,733.80 = 1,028.20 : x
  2. Step 2: Convert to fraction form
    2,488.90/3,733.80 = 1,028.20/x
  3. Step 3: Cross multiply
    2,488.90x = 3,733.80 × 1,028.20
  4. Step 4: Simplify right side
    2,488.90x = 3,839,093.16
  5. Step 5: Solve for x
    x = 3,839,093.16/2,488.90
  6. Step 6: Final answer
    x = 1,542.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.