Home / 2,183.30-3,013.19-1,386.87

Finding the Fourth Proportional to 2,183.30, 3,013.19 and 1,386.87

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Solution

The fourth proportional to 2,183.30, 3,013.19 and 1,386.87 is: 1,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.30 : 3,013.19 = 1,386.87 : x
  2. Step 2: Convert to fraction form
    2,183.30/3,013.19 = 1,386.87/x
  3. Step 3: Cross multiply
    2,183.30x = 3,013.19 × 1,386.87
  4. Step 4: Simplify right side
    2,183.30x = 4,178,895.88
  5. Step 5: Solve for x
    x = 4,178,895.88/2,183.30
  6. Step 6: Final answer
    x = 1,914.03

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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.