Home / 2,189.56-3,034.08-2,162.84

Finding the Fourth Proportional to 2,189.56, 3,034.08 and 2,162.84

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Solution

The fourth proportional to 2,189.56, 3,034.08 and 2,162.84 is: 2,997.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.56 : 3,034.08 = 2,162.84 : x
  2. Step 2: Convert to fraction form
    2,189.56/3,034.08 = 2,162.84/x
  3. Step 3: Cross multiply
    2,189.56x = 3,034.08 × 2,162.84
  4. Step 4: Simplify right side
    2,189.56x = 6,562,229.59
  5. Step 5: Solve for x
    x = 6,562,229.59/2,189.56
  6. Step 6: Final answer
    x = 2,997.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.