Home / 3,081.37-4,252.29-1,684.12

Finding the Fourth Proportional to 3,081.37, 4,252.29 and 1,684.12

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Solution

The fourth proportional to 3,081.37, 4,252.29 and 1,684.12 is: 2,324.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.37 : 4,252.29 = 1,684.12 : x
  2. Step 2: Convert to fraction form
    3,081.37/4,252.29 = 1,684.12/x
  3. Step 3: Cross multiply
    3,081.37x = 4,252.29 × 1,684.12
  4. Step 4: Simplify right side
    3,081.37x = 7,161,366.63
  5. Step 5: Solve for x
    x = 7,161,366.63/3,081.37
  6. Step 6: Final answer
    x = 2,324.09

Related Problems

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Half scale
Find fourth proportional to 6,162.74, 8,504.58 and 3,368.24
Double scale
Find fourth proportional to 3,082.37, 4,253.67 and 1,685.12
Similar ratio
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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.