Home / 2,236.05-3,333.78-2,178.36

Finding the Fourth Proportional to 2,236.05, 3,333.78 and 2,178.36

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Solution

The fourth proportional to 2,236.05, 3,333.78 and 2,178.36 is: 3,247.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.05 : 3,333.78 = 2,178.36 : x
  2. Step 2: Convert to fraction form
    2,236.05/3,333.78 = 2,178.36/x
  3. Step 3: Cross multiply
    2,236.05x = 3,333.78 × 2,178.36
  4. Step 4: Simplify right side
    2,236.05x = 7,262,173.00
  5. Step 5: Solve for x
    x = 7,262,173.00/2,236.05
  6. Step 6: Final answer
    x = 3,247.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.