Home / 2,183.55-3,275.32-1,317.66

Finding the Fourth Proportional to 2,183.55, 3,275.32 and 1,317.66

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Solution

The fourth proportional to 2,183.55, 3,275.32 and 1,317.66 is: 1,976.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.55 : 3,275.32 = 1,317.66 : x
  2. Step 2: Convert to fraction form
    2,183.55/3,275.32 = 1,317.66/x
  3. Step 3: Cross multiply
    2,183.55x = 3,275.32 × 1,317.66
  4. Step 4: Simplify right side
    2,183.55x = 4,315,758.15
  5. Step 5: Solve for x
    x = 4,315,758.15/2,183.55
  6. Step 6: Final answer
    x = 1,976.49

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Double scale
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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.