Home / 3,181.21-4,389.17-2,062.20

Finding the Fourth Proportional to 3,181.21, 4,389.17 and 2,062.20

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Solution

The fourth proportional to 3,181.21, 4,389.17 and 2,062.20 is: 2,845.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.21 : 4,389.17 = 2,062.20 : x
  2. Step 2: Convert to fraction form
    3,181.21/4,389.17 = 2,062.20/x
  3. Step 3: Cross multiply
    3,181.21x = 4,389.17 × 2,062.20
  4. Step 4: Simplify right side
    3,181.21x = 9,051,329.58
  5. Step 5: Solve for x
    x = 9,051,329.58/3,181.21
  6. Step 6: Final answer
    x = 2,845.25

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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.