Home / 1,983.48-2,736.32-1,186.34

Finding the Fourth Proportional to 1,983.48, 2,736.32 and 1,186.34

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Solution

The fourth proportional to 1,983.48, 2,736.32 and 1,186.34 is: 1,636.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.48 : 2,736.32 = 1,186.34 : x
  2. Step 2: Convert to fraction form
    1,983.48/2,736.32 = 1,186.34/x
  3. Step 3: Cross multiply
    1,983.48x = 2,736.32 × 1,186.34
  4. Step 4: Simplify right side
    1,983.48x = 3,246,205.87
  5. Step 5: Solve for x
    x = 3,246,205.87/1,983.48
  6. Step 6: Final answer
    x = 1,636.62

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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.