Home / 3,620.39-4,996.13-2,129.16

Finding the Fourth Proportional to 3,620.39, 4,996.13 and 2,129.16

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Solution

The fourth proportional to 3,620.39, 4,996.13 and 2,129.16 is: 2,938.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.39 : 4,996.13 = 2,129.16 : x
  2. Step 2: Convert to fraction form
    3,620.39/4,996.13 = 2,129.16/x
  3. Step 3: Cross multiply
    3,620.39x = 4,996.13 × 2,129.16
  4. Step 4: Simplify right side
    3,620.39x = 10,637,560.15
  5. Step 5: Solve for x
    x = 10,637,560.15/3,620.39
  6. Step 6: Final answer
    x = 2,938.24

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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.