Home / 2,309.64-3,183.54-1,609.80

Finding the Fourth Proportional to 2,309.64, 3,183.54 and 1,609.80

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Solution

The fourth proportional to 2,309.64, 3,183.54 and 1,609.80 is: 2,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.64 : 3,183.54 = 1,609.80 : x
  2. Step 2: Convert to fraction form
    2,309.64/3,183.54 = 1,609.80/x
  3. Step 3: Cross multiply
    2,309.64x = 3,183.54 × 1,609.80
  4. Step 4: Simplify right side
    2,309.64x = 5,124,862.69
  5. Step 5: Solve for x
    x = 5,124,862.69/2,309.64
  6. Step 6: Final answer
    x = 2,218.90

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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.