Home / 2,028.25-2,799-1,407.61

Finding the Fourth Proportional to 2,028.25, 2,799 and 1,407.61

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Solution

The fourth proportional to 2,028.25, 2,799 and 1,407.61 is: 1,942.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.25 : 2,799 = 1,407.61 : x
  2. Step 2: Convert to fraction form
    2,028.25/2,799 = 1,407.61/x
  3. Step 3: Cross multiply
    2,028.25x = 2,799 × 1,407.61
  4. Step 4: Simplify right side
    2,028.25x = 3,939,900.39
  5. Step 5: Solve for x
    x = 3,939,900.39/2,028.25
  6. Step 6: Final answer
    x = 1,942.51

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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.