Home / 2,028.96-2,799.34-1,242.20

Finding the Fourth Proportional to 2,028.96, 2,799.34 and 1,242.20

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Solution

The fourth proportional to 2,028.96, 2,799.34 and 1,242.20 is: 1,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.96 : 2,799.34 = 1,242.20 : x
  2. Step 2: Convert to fraction form
    2,028.96/2,799.34 = 1,242.20/x
  3. Step 3: Cross multiply
    2,028.96x = 2,799.34 × 1,242.20
  4. Step 4: Simplify right side
    2,028.96x = 3,477,340.15
  5. Step 5: Solve for x
    x = 3,477,340.15/2,028.96
  6. Step 6: Final answer
    x = 1,713.85

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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.