Home / 3,213.86-4,434.63-1,887.44

Finding the Fourth Proportional to 3,213.86, 4,434.63 and 1,887.44

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Solution

The fourth proportional to 3,213.86, 4,434.63 and 1,887.44 is: 2,604.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.86 : 4,434.63 = 1,887.44 : x
  2. Step 2: Convert to fraction form
    3,213.86/4,434.63 = 1,887.44/x
  3. Step 3: Cross multiply
    3,213.86x = 4,434.63 × 1,887.44
  4. Step 4: Simplify right side
    3,213.86x = 8,370,098.05
  5. Step 5: Solve for x
    x = 8,370,098.05/3,213.86
  6. Step 6: Final answer
    x = 2,604.38

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Find fourth proportional to 1,606.93, 2,217.32 and 943.72
Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.