Home / 3,305.70-4,561.57-1,889.11

Finding the Fourth Proportional to 3,305.70, 4,561.57 and 1,889.11

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Solution

The fourth proportional to 3,305.70, 4,561.57 and 1,889.11 is: 2,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,305.70 : 4,561.57 = 1,889.11 : x
  2. Step 2: Convert to fraction form
    3,305.70/4,561.57 = 1,889.11/x
  3. Step 3: Cross multiply
    3,305.70x = 4,561.57 × 1,889.11
  4. Step 4: Simplify right side
    3,305.70x = 8,617,289.91
  5. Step 5: Solve for x
    x = 8,617,289.91/3,305.70
  6. Step 6: Final answer
    x = 2,606.80

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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.