Home / 2,383.52-3,289.13-1,321.20

Finding the Fourth Proportional to 2,383.52, 3,289.13 and 1,321.20

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Solution

The fourth proportional to 2,383.52, 3,289.13 and 1,321.20 is: 1,823.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.52 : 3,289.13 = 1,321.20 : x
  2. Step 2: Convert to fraction form
    2,383.52/3,289.13 = 1,321.20/x
  3. Step 3: Cross multiply
    2,383.52x = 3,289.13 × 1,321.20
  4. Step 4: Simplify right side
    2,383.52x = 4,345,591.95
  5. Step 5: Solve for x
    x = 4,345,591.95/2,383.52
  6. Step 6: Final answer
    x = 1,823.19

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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.