Home / 2,738.19-4,107.36-763.83

Finding the Fourth Proportional to 2,738.19, 4,107.36 and 763.83

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Solution

The fourth proportional to 2,738.19, 4,107.36 and 763.83 is: 1,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.19 : 4,107.36 = 763.83 : x
  2. Step 2: Convert to fraction form
    2,738.19/4,107.36 = 763.83/x
  3. Step 3: Cross multiply
    2,738.19x = 4,107.36 × 763.83
  4. Step 4: Simplify right side
    2,738.19x = 3,137,324.79
  5. Step 5: Solve for x
    x = 3,137,324.79/2,738.19
  6. Step 6: Final answer
    x = 1,145.77

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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.