Home / 1,889.43-2,607.96-1,226.34

Finding the Fourth Proportional to 1,889.43, 2,607.96 and 1,226.34

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Solution

The fourth proportional to 1,889.43, 2,607.96 and 1,226.34 is: 1,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.43 : 2,607.96 = 1,226.34 : x
  2. Step 2: Convert to fraction form
    1,889.43/2,607.96 = 1,226.34/x
  3. Step 3: Cross multiply
    1,889.43x = 2,607.96 × 1,226.34
  4. Step 4: Simplify right side
    1,889.43x = 3,198,250.27
  5. Step 5: Solve for x
    x = 3,198,250.27/1,889.43
  6. Step 6: Final answer
    x = 1,692.71

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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.