Home / 3,116.76-4,295.22-2,231.02

Finding the Fourth Proportional to 3,116.76, 4,295.22 and 2,231.02

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Solution

The fourth proportional to 3,116.76, 4,295.22 and 2,231.02 is: 3,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.76 : 4,295.22 = 2,231.02 : x
  2. Step 2: Convert to fraction form
    3,116.76/4,295.22 = 2,231.02/x
  3. Step 3: Cross multiply
    3,116.76x = 4,295.22 × 2,231.02
  4. Step 4: Simplify right side
    3,116.76x = 9,582,721.72
  5. Step 5: Solve for x
    x = 9,582,721.72/3,116.76
  6. Step 6: Final answer
    x = 3,074.58

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Half scale
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Double scale
Find fourth proportional to 3,117.76, 4,296.60 and 2,232.02
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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.