Home / 2,015.28-3,019.32-1,528.56

Finding the Fourth Proportional to 2,015.28, 3,019.32 and 1,528.56

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Solution

The fourth proportional to 2,015.28, 3,019.32 and 1,528.56 is: 2,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.28 : 3,019.32 = 1,528.56 : x
  2. Step 2: Convert to fraction form
    2,015.28/3,019.32 = 1,528.56/x
  3. Step 3: Cross multiply
    2,015.28x = 3,019.32 × 1,528.56
  4. Step 4: Simplify right side
    2,015.28x = 4,615,211.78
  5. Step 5: Solve for x
    x = 4,615,211.78/2,015.28
  6. Step 6: Final answer
    x = 2,290.11

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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.