Home / 3,631.22-5,012.45-3,125.21

Finding the Fourth Proportional to 3,631.22, 5,012.45 and 3,125.21

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Solution

The fourth proportional to 3,631.22, 5,012.45 and 3,125.21 is: 4,313.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.22 : 5,012.45 = 3,125.21 : x
  2. Step 2: Convert to fraction form
    3,631.22/5,012.45 = 3,125.21/x
  3. Step 3: Cross multiply
    3,631.22x = 5,012.45 × 3,125.21
  4. Step 4: Simplify right side
    3,631.22x = 15,664,958.86
  5. Step 5: Solve for x
    x = 15,664,958.86/3,631.22
  6. Step 6: Final answer
    x = 4,313.97

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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.