Home / 3,081.34-4,252.19-1,684.10

Finding the Fourth Proportional to 3,081.34, 4,252.19 and 1,684.10

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Solution

The fourth proportional to 3,081.34, 4,252.19 and 1,684.10 is: 2,324.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.34 : 4,252.19 = 1,684.10 : x
  2. Step 2: Convert to fraction form
    3,081.34/4,252.19 = 1,684.10/x
  3. Step 3: Cross multiply
    3,081.34x = 4,252.19 × 1,684.10
  4. Step 4: Simplify right side
    3,081.34x = 7,161,113.18
  5. Step 5: Solve for x
    x = 7,161,113.18/3,081.34
  6. Step 6: Final answer
    x = 2,324.03

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Half scale
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Double scale
Find fourth proportional to 3,082.34, 4,253.57 and 1,685.10
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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.