Home / 2,738.11-4,107.81-889.22

Finding the Fourth Proportional to 2,738.11, 4,107.81 and 889.22

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Solution

The fourth proportional to 2,738.11, 4,107.81 and 889.22 is: 1,334.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.11 : 4,107.81 = 889.22 : x
  2. Step 2: Convert to fraction form
    2,738.11/4,107.81 = 889.22/x
  3. Step 3: Cross multiply
    2,738.11x = 4,107.81 × 889.22
  4. Step 4: Simplify right side
    2,738.11x = 3,652,746.81
  5. Step 5: Solve for x
    x = 3,652,746.81/2,738.11
  6. Step 6: Final answer
    x = 1,334.04

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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.