Home / 3,071.45-4,607.14-2,166.12

Finding the Fourth Proportional to 3,071.45, 4,607.14 and 2,166.12

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Solution

The fourth proportional to 3,071.45, 4,607.14 and 2,166.12 is: 3,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.45 : 4,607.14 = 2,166.12 : x
  2. Step 2: Convert to fraction form
    3,071.45/4,607.14 = 2,166.12/x
  3. Step 3: Cross multiply
    3,071.45x = 4,607.14 × 2,166.12
  4. Step 4: Simplify right side
    3,071.45x = 9,979,613.31
  5. Step 5: Solve for x
    x = 9,979,613.31/3,071.45
  6. Step 6: Final answer
    x = 3,249.15

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Half scale
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Double scale
Find fourth proportional to 3,072.45, 4,608.64 and 2,167.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.