Home / 2,383.08-3,288.60-1,388.34

Finding the Fourth Proportional to 2,383.08, 3,288.60 and 1,388.34

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Solution

The fourth proportional to 2,383.08, 3,288.60 and 1,388.34 is: 1,915.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.08 : 3,288.60 = 1,388.34 : x
  2. Step 2: Convert to fraction form
    2,383.08/3,288.60 = 1,388.34/x
  3. Step 3: Cross multiply
    2,383.08x = 3,288.60 × 1,388.34
  4. Step 4: Simplify right side
    2,383.08x = 4,565,694.92
  5. Step 5: Solve for x
    x = 4,565,694.92/2,383.08
  6. Step 6: Final answer
    x = 1,915.88

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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.