Home / 3,125.66-4,305.89-2,628.32

Finding the Fourth Proportional to 3,125.66, 4,305.89 and 2,628.32

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Solution

The fourth proportional to 3,125.66, 4,305.89 and 2,628.32 is: 3,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.66 : 4,305.89 = 2,628.32 : x
  2. Step 2: Convert to fraction form
    3,125.66/4,305.89 = 2,628.32/x
  3. Step 3: Cross multiply
    3,125.66x = 4,305.89 × 2,628.32
  4. Step 4: Simplify right side
    3,125.66x = 11,317,241.85
  5. Step 5: Solve for x
    x = 11,317,241.85/3,125.66
  6. Step 6: Final answer
    x = 3,620.76

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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.