Home / 2,383.84-3,288.99-1,638.64

Finding the Fourth Proportional to 2,383.84, 3,288.99 and 1,638.64

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Solution

The fourth proportional to 2,383.84, 3,288.99 and 1,638.64 is: 2,260.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.84 : 3,288.99 = 1,638.64 : x
  2. Step 2: Convert to fraction form
    2,383.84/3,288.99 = 1,638.64/x
  3. Step 3: Cross multiply
    2,383.84x = 3,288.99 × 1,638.64
  4. Step 4: Simplify right side
    2,383.84x = 5,389,470.57
  5. Step 5: Solve for x
    x = 5,389,470.57/2,383.84
  6. Step 6: Final answer
    x = 2,260.84

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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.