Home / 3,106.69-4,286.18-2,110.23

Finding the Fourth Proportional to 3,106.69, 4,286.18 and 2,110.23

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Solution

The fourth proportional to 3,106.69, 4,286.18 and 2,110.23 is: 2,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.69 : 4,286.18 = 2,110.23 : x
  2. Step 2: Convert to fraction form
    3,106.69/4,286.18 = 2,110.23/x
  3. Step 3: Cross multiply
    3,106.69x = 4,286.18 × 2,110.23
  4. Step 4: Simplify right side
    3,106.69x = 9,044,825.62
  5. Step 5: Solve for x
    x = 9,044,825.62/3,106.69
  6. Step 6: Final answer
    x = 2,911.40

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Half scale
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Double scale
Find fourth proportional to 3,107.69, 4,287.56 and 2,111.23
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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.