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Finding the Fourth Proportional to 2,999.89, 4,141.09 and 1,880.57

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Solution

The fourth proportional to 2,999.89, 4,141.09 and 1,880.57 is: 2,595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.89 : 4,141.09 = 1,880.57 : x
  2. Step 2: Convert to fraction form
    2,999.89/4,141.09 = 1,880.57/x
  3. Step 3: Cross multiply
    2,999.89x = 4,141.09 × 1,880.57
  4. Step 4: Simplify right side
    2,999.89x = 7,787,609.62
  5. Step 5: Solve for x
    x = 7,787,609.62/2,999.89
  6. Step 6: Final answer
    x = 2,595.97

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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.