Home / 2,183.98-3,013.90-1,189.28

Finding the Fourth Proportional to 2,183.98, 3,013.90 and 1,189.28

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Solution

The fourth proportional to 2,183.98, 3,013.90 and 1,189.28 is: 1,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.98 : 3,013.90 = 1,189.28 : x
  2. Step 2: Convert to fraction form
    2,183.98/3,013.90 = 1,189.28/x
  3. Step 3: Cross multiply
    2,183.98x = 3,013.90 × 1,189.28
  4. Step 4: Simplify right side
    2,183.98x = 3,584,352.95
  5. Step 5: Solve for x
    x = 3,584,352.95/2,183.98
  6. Step 6: Final answer
    x = 1,641.20

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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.