Home / 2,236.08-3,085.68-1,241.20

Finding the Fourth Proportional to 2,236.08, 3,085.68 and 1,241.20

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Solution

The fourth proportional to 2,236.08, 3,085.68 and 1,241.20 is: 1,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.08 : 3,085.68 = 1,241.20 : x
  2. Step 2: Convert to fraction form
    2,236.08/3,085.68 = 1,241.20/x
  3. Step 3: Cross multiply
    2,236.08x = 3,085.68 × 1,241.20
  4. Step 4: Simplify right side
    2,236.08x = 3,829,946.02
  5. Step 5: Solve for x
    x = 3,829,946.02/2,236.08
  6. Step 6: Final answer
    x = 1,712.79

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Half scale
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Double scale
Find fourth proportional to 2,237.08, 3,087.06 and 1,242.20
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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.