Home / 3,623.21-4,998.20-2,130.17

Finding the Fourth Proportional to 3,623.21, 4,998.20 and 2,130.17

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Solution

The fourth proportional to 3,623.21, 4,998.20 and 2,130.17 is: 2,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.21 : 4,998.20 = 2,130.17 : x
  2. Step 2: Convert to fraction form
    3,623.21/4,998.20 = 2,130.17/x
  3. Step 3: Cross multiply
    3,623.21x = 4,998.20 × 2,130.17
  4. Step 4: Simplify right side
    3,623.21x = 10,647,017.54
  5. Step 5: Solve for x
    x = 10,647,017.54/3,623.21
  6. Step 6: Final answer
    x = 2,938.56

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Half scale
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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.