Home / 1,443.85-2,163.77-826.25

Finding the Fourth Proportional to 1,443.85, 2,163.77 and 826.25

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Solution

The fourth proportional to 1,443.85, 2,163.77 and 826.25 is: 1,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443.85 : 2,163.77 = 826.25 : x
  2. Step 2: Convert to fraction form
    1,443.85/2,163.77 = 826.25/x
  3. Step 3: Cross multiply
    1,443.85x = 2,163.77 × 826.25
  4. Step 4: Simplify right side
    1,443.85x = 1,787,806.21
  5. Step 5: Solve for x
    x = 1,787,806.21/1,443.85
  6. Step 6: Final answer
    x = 1,238.22

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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.