Home / 2,236.70-3,087.52-1,678.79

Finding the Fourth Proportional to 2,236.70, 3,087.52 and 1,678.79

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Solution

The fourth proportional to 2,236.70, 3,087.52 and 1,678.79 is: 2,317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.70 : 3,087.52 = 1,678.79 : x
  2. Step 2: Convert to fraction form
    2,236.70/3,087.52 = 1,678.79/x
  3. Step 3: Cross multiply
    2,236.70x = 3,087.52 × 1,678.79
  4. Step 4: Simplify right side
    2,236.70x = 5,183,297.70
  5. Step 5: Solve for x
    x = 5,183,297.70/2,236.70
  6. Step 6: Final answer
    x = 2,317.39

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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.