Home / 3,081.70-4,252.74-1,684.42

Finding the Fourth Proportional to 3,081.70, 4,252.74 and 1,684.42

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Solution

The fourth proportional to 3,081.70, 4,252.74 and 1,684.42 is: 2,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.70 : 4,252.74 = 1,684.42 : x
  2. Step 2: Convert to fraction form
    3,081.70/4,252.74 = 1,684.42/x
  3. Step 3: Cross multiply
    3,081.70x = 4,252.74 × 1,684.42
  4. Step 4: Simplify right side
    3,081.70x = 7,163,400.31
  5. Step 5: Solve for x
    x = 7,163,400.31/3,081.70
  6. Step 6: Final answer
    x = 2,324.50

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Half scale
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Double scale
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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.