Home / 2,273.93-3,138.14-1,389.59

Finding the Fourth Proportional to 2,273.93, 3,138.14 and 1,389.59

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Solution

The fourth proportional to 2,273.93, 3,138.14 and 1,389.59 is: 1,917.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.93 : 3,138.14 = 1,389.59 : x
  2. Step 2: Convert to fraction form
    2,273.93/3,138.14 = 1,389.59/x
  3. Step 3: Cross multiply
    2,273.93x = 3,138.14 × 1,389.59
  4. Step 4: Simplify right side
    2,273.93x = 4,360,727.96
  5. Step 5: Solve for x
    x = 4,360,727.96/2,273.93
  6. Step 6: Final answer
    x = 1,917.71

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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.