Home / 3,630.62-5,010.05-2,138.45

Finding the Fourth Proportional to 3,630.62, 5,010.05 and 2,138.45

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Solution

The fourth proportional to 3,630.62, 5,010.05 and 2,138.45 is: 2,950.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.62 : 5,010.05 = 2,138.45 : x
  2. Step 2: Convert to fraction form
    3,630.62/5,010.05 = 2,138.45/x
  3. Step 3: Cross multiply
    3,630.62x = 5,010.05 × 2,138.45
  4. Step 4: Simplify right side
    3,630.62x = 10,713,749.90
  5. Step 5: Solve for x
    x = 10,713,749.90/3,630.62
  6. Step 6: Final answer
    x = 2,950.94

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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.