Home / 3,381.09-4,665.81-1,888.89

Finding the Fourth Proportional to 3,381.09, 4,665.81 and 1,888.89

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Solution

The fourth proportional to 3,381.09, 4,665.81 and 1,888.89 is: 2,606.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.09 : 4,665.81 = 1,888.89 : x
  2. Step 2: Convert to fraction form
    3,381.09/4,665.81 = 1,888.89/x
  3. Step 3: Cross multiply
    3,381.09x = 4,665.81 × 1,888.89
  4. Step 4: Simplify right side
    3,381.09x = 8,813,201.85
  5. Step 5: Solve for x
    x = 8,813,201.85/3,381.09
  6. Step 6: Final answer
    x = 2,606.62

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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.