Home / 2,015.78-2,783.38-1,344.24

Finding the Fourth Proportional to 2,015.78, 2,783.38 and 1,344.24

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Solution

The fourth proportional to 2,015.78, 2,783.38 and 1,344.24 is: 1,856.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.78 : 2,783.38 = 1,344.24 : x
  2. Step 2: Convert to fraction form
    2,015.78/2,783.38 = 1,344.24/x
  3. Step 3: Cross multiply
    2,015.78x = 2,783.38 × 1,344.24
  4. Step 4: Simplify right side
    2,015.78x = 3,741,530.73
  5. Step 5: Solve for x
    x = 3,741,530.73/2,015.78
  6. Step 6: Final answer
    x = 1,856.12

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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.