Home / 5,120.60-7,676.64-3,563.64

Finding the Fourth Proportional to 5,120.60, 7,676.64 and 3,563.64

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Solution

The fourth proportional to 5,120.60, 7,676.64 and 3,563.64 is: 5,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.60 : 7,676.64 = 3,563.64 : x
  2. Step 2: Convert to fraction form
    5,120.60/7,676.64 = 3,563.64/x
  3. Step 3: Cross multiply
    5,120.60x = 7,676.64 × 3,563.64
  4. Step 4: Simplify right side
    5,120.60x = 27,356,781.37
  5. Step 5: Solve for x
    x = 27,356,781.37/5,120.60
  6. Step 6: Final answer
    x = 5,342.50

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1.5x scale

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.