Home / 3,631.22-5,009.37-2,138.18

Finding the Fourth Proportional to 3,631.22, 5,009.37 and 2,138.18

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Solution

The fourth proportional to 3,631.22, 5,009.37 and 2,138.18 is: 2,949.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.22 : 5,009.37 = 2,138.18 : x
  2. Step 2: Convert to fraction form
    3,631.22/5,009.37 = 2,138.18/x
  3. Step 3: Cross multiply
    3,631.22x = 5,009.37 × 2,138.18
  4. Step 4: Simplify right side
    3,631.22x = 10,710,909.70
  5. Step 5: Solve for x
    x = 10,710,909.70/3,631.22
  6. Step 6: Final answer
    x = 2,949.68

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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.