Home / 2,015.28-3,023.40-1,091.76

Finding the Fourth Proportional to 2,015.28, 3,023.40 and 1,091.76

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Solution

The fourth proportional to 2,015.28, 3,023.40 and 1,091.76 is: 1,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.28 : 3,023.40 = 1,091.76 : x
  2. Step 2: Convert to fraction form
    2,015.28/3,023.40 = 1,091.76/x
  3. Step 3: Cross multiply
    2,015.28x = 3,023.40 × 1,091.76
  4. Step 4: Simplify right side
    2,015.28x = 3,300,827.18
  5. Step 5: Solve for x
    x = 3,300,827.18/2,015.28
  6. Step 6: Final answer
    x = 1,637.90

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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.