Home / 2,093.79-2,889.66-1,209.87

Finding the Fourth Proportional to 2,093.79, 2,889.66 and 1,209.87

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Solution

The fourth proportional to 2,093.79, 2,889.66 and 1,209.87 is: 1,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.79 : 2,889.66 = 1,209.87 : x
  2. Step 2: Convert to fraction form
    2,093.79/2,889.66 = 1,209.87/x
  3. Step 3: Cross multiply
    2,093.79x = 2,889.66 × 1,209.87
  4. Step 4: Simplify right side
    2,093.79x = 3,496,112.94
  5. Step 5: Solve for x
    x = 3,496,112.94/2,093.79
  6. Step 6: Final answer
    x = 1,669.75

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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.