Home / 2,156.96-3,236.86-1,183.74

Finding the Fourth Proportional to 2,156.96, 3,236.86 and 1,183.74

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Solution

The fourth proportional to 2,156.96, 3,236.86 and 1,183.74 is: 1,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.96 : 3,236.86 = 1,183.74 : x
  2. Step 2: Convert to fraction form
    2,156.96/3,236.86 = 1,183.74/x
  3. Step 3: Cross multiply
    2,156.96x = 3,236.86 × 1,183.74
  4. Step 4: Simplify right side
    2,156.96x = 3,831,600.66
  5. Step 5: Solve for x
    x = 3,831,600.66/2,156.96
  6. Step 6: Final answer
    x = 1,776.39

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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.