Home / 5,407.21-8,108.77-1,896.22

Finding the Fourth Proportional to 5,407.21, 8,108.77 and 1,896.22

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Solution

The fourth proportional to 5,407.21, 8,108.77 and 1,896.22 is: 2,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.21 : 8,108.77 = 1,896.22 : x
  2. Step 2: Convert to fraction form
    5,407.21/8,108.77 = 1,896.22/x
  3. Step 3: Cross multiply
    5,407.21x = 8,108.77 × 1,896.22
  4. Step 4: Simplify right side
    5,407.21x = 15,376,011.85
  5. Step 5: Solve for x
    x = 15,376,011.85/5,407.21
  6. Step 6: Final answer
    x = 2,843.61

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Double scale
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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.