Home / 3,389.00-4,677.11-1,896.89

Finding the Fourth Proportional to 3,389.00, 4,677.11 and 1,896.89

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Solution

The fourth proportional to 3,389.00, 4,677.11 and 1,896.89 is: 2,617.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.00 : 4,677.11 = 1,896.89 : x
  2. Step 2: Convert to fraction form
    3,389.00/4,677.11 = 1,896.89/x
  3. Step 3: Cross multiply
    3,389.00x = 4,677.11 × 1,896.89
  4. Step 4: Simplify right side
    3,389.00x = 8,871,947.86
  5. Step 5: Solve for x
    x = 8,871,947.86/3,389.00
  6. Step 6: Final answer
    x = 2,617.87

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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.