Home / 2,027.28-2,796.60-1,438.08

Finding the Fourth Proportional to 2,027.28, 2,796.60 and 1,438.08

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Solution

The fourth proportional to 2,027.28, 2,796.60 and 1,438.08 is: 1,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.28 : 2,796.60 = 1,438.08 : x
  2. Step 2: Convert to fraction form
    2,027.28/2,796.60 = 1,438.08/x
  3. Step 3: Cross multiply
    2,027.28x = 2,796.60 × 1,438.08
  4. Step 4: Simplify right side
    2,027.28x = 4,021,734.53
  5. Step 5: Solve for x
    x = 4,021,734.53/2,027.28
  6. Step 6: Final answer
    x = 1,983.81

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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.