Home / 3,581.86-4,942.74-2,090.20

Finding the Fourth Proportional to 3,581.86, 4,942.74 and 2,090.20

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Solution

The fourth proportional to 3,581.86, 4,942.74 and 2,090.20 is: 2,884.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.86 : 4,942.74 = 2,090.20 : x
  2. Step 2: Convert to fraction form
    3,581.86/4,942.74 = 2,090.20/x
  3. Step 3: Cross multiply
    3,581.86x = 4,942.74 × 2,090.20
  4. Step 4: Simplify right side
    3,581.86x = 10,331,315.15
  5. Step 5: Solve for x
    x = 10,331,315.15/3,581.86
  6. Step 6: Final answer
    x = 2,884.34

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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.