Home / 2,273.39-3,137.33-1,389.68

Finding the Fourth Proportional to 2,273.39, 3,137.33 and 1,389.68

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Solution

The fourth proportional to 2,273.39, 3,137.33 and 1,389.68 is: 1,917.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.39 : 3,137.33 = 1,389.68 : x
  2. Step 2: Convert to fraction form
    2,273.39/3,137.33 = 1,389.68/x
  3. Step 3: Cross multiply
    2,273.39x = 3,137.33 × 1,389.68
  4. Step 4: Simplify right side
    2,273.39x = 4,359,896.07
  5. Step 5: Solve for x
    x = 4,359,896.07/2,273.39
  6. Step 6: Final answer
    x = 1,917.79

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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.