Home / 3,383.84-4,669.80-1,986.32

Finding the Fourth Proportional to 3,383.84, 4,669.80 and 1,986.32

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Solution

The fourth proportional to 3,383.84, 4,669.80 and 1,986.32 is: 2,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.84 : 4,669.80 = 1,986.32 : x
  2. Step 2: Convert to fraction form
    3,383.84/4,669.80 = 1,986.32/x
  3. Step 3: Cross multiply
    3,383.84x = 4,669.80 × 1,986.32
  4. Step 4: Simplify right side
    3,383.84x = 9,275,717.14
  5. Step 5: Solve for x
    x = 9,275,717.14/3,383.84
  6. Step 6: Final answer
    x = 2,741.18

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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.