Home / 3,186.34-4,395.36-2,005.36

Finding the Fourth Proportional to 3,186.34, 4,395.36 and 2,005.36

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Solution

The fourth proportional to 3,186.34, 4,395.36 and 2,005.36 is: 2,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.34 : 4,395.36 = 2,005.36 : x
  2. Step 2: Convert to fraction form
    3,186.34/4,395.36 = 2,005.36/x
  3. Step 3: Cross multiply
    3,186.34x = 4,395.36 × 2,005.36
  4. Step 4: Simplify right side
    3,186.34x = 8,814,275.66
  5. Step 5: Solve for x
    x = 8,814,275.66/3,186.34
  6. Step 6: Final answer
    x = 2,766.27

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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.