Home / 3,389.09-4,676.85-1,896.89

Finding the Fourth Proportional to 3,389.09, 4,676.85 and 1,896.89

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Solution

The fourth proportional to 3,389.09, 4,676.85 and 1,896.89 is: 2,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.09 : 4,676.85 = 1,896.89 : x
  2. Step 2: Convert to fraction form
    3,389.09/4,676.85 = 1,896.89/x
  3. Step 3: Cross multiply
    3,389.09x = 4,676.85 × 1,896.89
  4. Step 4: Simplify right side
    3,389.09x = 8,871,446.61
  5. Step 5: Solve for x
    x = 8,871,446.61/3,389.09
  6. Step 6: Final answer
    x = 2,617.65

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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.