Home / 5,805.21-8,707.85-1,422.69

Finding the Fourth Proportional to 5,805.21, 8,707.85 and 1,422.69

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Solution

The fourth proportional to 5,805.21, 8,707.85 and 1,422.69 is: 2,134.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.21 : 8,707.85 = 1,422.69 : x
  2. Step 2: Convert to fraction form
    5,805.21/8,707.85 = 1,422.69/x
  3. Step 3: Cross multiply
    5,805.21x = 8,707.85 × 1,422.69
  4. Step 4: Simplify right side
    5,805.21x = 12,388,571.12
  5. Step 5: Solve for x
    x = 12,388,571.12/5,805.21
  6. Step 6: Final answer
    x = 2,134.04

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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.