Home / 2,230.36-3,077.58-1,235.62

Finding the Fourth Proportional to 2,230.36, 3,077.58 and 1,235.62

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Solution

The fourth proportional to 2,230.36, 3,077.58 and 1,235.62 is: 1,704.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.36 : 3,077.58 = 1,235.62 : x
  2. Step 2: Convert to fraction form
    2,230.36/3,077.58 = 1,235.62/x
  3. Step 3: Cross multiply
    2,230.36x = 3,077.58 × 1,235.62
  4. Step 4: Simplify right side
    2,230.36x = 3,802,719.40
  5. Step 5: Solve for x
    x = 3,802,719.40/2,230.36
  6. Step 6: Final answer
    x = 1,704.98

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Half scale
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Double scale
Find fourth proportional to 2,231.36, 3,078.96 and 1,236.62
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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.