Home / 3,079.36-4,249.53-1,682.14

Finding the Fourth Proportional to 3,079.36, 4,249.53 and 1,682.14

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Solution

The fourth proportional to 3,079.36, 4,249.53 and 1,682.14 is: 2,321.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.36 : 4,249.53 = 1,682.14 : x
  2. Step 2: Convert to fraction form
    3,079.36/4,249.53 = 1,682.14/x
  3. Step 3: Cross multiply
    3,079.36x = 4,249.53 × 1,682.14
  4. Step 4: Simplify right side
    3,079.36x = 7,148,304.39
  5. Step 5: Solve for x
    x = 7,148,304.39/3,079.36
  6. Step 6: Final answer
    x = 2,321.36

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Half scale
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Double scale
Find fourth proportional to 3,080.36, 4,250.91 and 1,683.14
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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.