Home / 2,236.92-3,090.78-2,158.08

Finding the Fourth Proportional to 2,236.92, 3,090.78 and 2,158.08

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Solution

The fourth proportional to 2,236.92, 3,090.78 and 2,158.08 is: 2,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.92 : 3,090.78 = 2,158.08 : x
  2. Step 2: Convert to fraction form
    2,236.92/3,090.78 = 2,158.08/x
  3. Step 3: Cross multiply
    2,236.92x = 3,090.78 × 2,158.08
  4. Step 4: Simplify right side
    2,236.92x = 6,670,150.50
  5. Step 5: Solve for x
    x = 6,670,150.50/2,236.92
  6. Step 6: Final answer
    x = 2,981.85

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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.