Home / 1,939.10-2,906.73-1,207.07

Finding the Fourth Proportional to 1,939.10, 2,906.73 and 1,207.07

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Solution

The fourth proportional to 1,939.10, 2,906.73 and 1,207.07 is: 1,809.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.10 : 2,906.73 = 1,207.07 : x
  2. Step 2: Convert to fraction form
    1,939.10/2,906.73 = 1,207.07/x
  3. Step 3: Cross multiply
    1,939.10x = 2,906.73 × 1,207.07
  4. Step 4: Simplify right side
    1,939.10x = 3,508,626.58
  5. Step 5: Solve for x
    x = 3,508,626.58/1,939.10
  6. Step 6: Final answer
    x = 1,809.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.