Home / 3,389.21-4,676.66-1,896.97

Finding the Fourth Proportional to 3,389.21, 4,676.66 and 1,896.97

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Solution

The fourth proportional to 3,389.21, 4,676.66 and 1,896.97 is: 2,617.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.21 : 4,676.66 = 1,896.97 : x
  2. Step 2: Convert to fraction form
    3,389.21/4,676.66 = 1,896.97/x
  3. Step 3: Cross multiply
    3,389.21x = 4,676.66 × 1,896.97
  4. Step 4: Simplify right side
    3,389.21x = 8,871,483.72
  5. Step 5: Solve for x
    x = 8,871,483.72/3,389.21
  6. Step 6: Final answer
    x = 2,617.57

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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.