Home / 4,112.56-5,676.16-2,856.24

Finding the Fourth Proportional to 4,112.56, 5,676.16 and 2,856.24

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Solution

The fourth proportional to 4,112.56, 5,676.16 and 2,856.24 is: 3,942.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.56 : 5,676.16 = 2,856.24 : x
  2. Step 2: Convert to fraction form
    4,112.56/5,676.16 = 2,856.24/x
  3. Step 3: Cross multiply
    4,112.56x = 5,676.16 × 2,856.24
  4. Step 4: Simplify right side
    4,112.56x = 16,212,475.24
  5. Step 5: Solve for x
    x = 16,212,475.24/4,112.56
  6. Step 6: Final answer
    x = 3,942.19

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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.