Home / 2,183.58-3,012.65-1,239.30

Finding the Fourth Proportional to 2,183.58, 3,012.65 and 1,239.30

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Solution

The fourth proportional to 2,183.58, 3,012.65 and 1,239.30 is: 1,709.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.58 : 3,012.65 = 1,239.30 : x
  2. Step 2: Convert to fraction form
    2,183.58/3,012.65 = 1,239.30/x
  3. Step 3: Cross multiply
    2,183.58x = 3,012.65 × 1,239.30
  4. Step 4: Simplify right side
    2,183.58x = 3,733,562.08
  5. Step 5: Solve for x
    x = 3,733,562.08/2,183.58
  6. Step 6: Final answer
    x = 1,709.84

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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.