Home / 2,028.21-2,798.64-1,242.06

Finding the Fourth Proportional to 2,028.21, 2,798.64 and 1,242.06

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Solution

The fourth proportional to 2,028.21, 2,798.64 and 1,242.06 is: 1,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.21 : 2,798.64 = 1,242.06 : x
  2. Step 2: Convert to fraction form
    2,028.21/2,798.64 = 1,242.06/x
  3. Step 3: Cross multiply
    2,028.21x = 2,798.64 × 1,242.06
  4. Step 4: Simplify right side
    2,028.21x = 3,476,078.80
  5. Step 5: Solve for x
    x = 3,476,078.80/2,028.21
  6. Step 6: Final answer
    x = 1,713.87

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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.