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Finding the Fourth Proportional to 3,999.58, 5,999.32 and 1,806.77

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Solution

The fourth proportional to 3,999.58, 5,999.32 and 1,806.77 is: 2,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.58 : 5,999.32 = 1,806.77 : x
  2. Step 2: Convert to fraction form
    3,999.58/5,999.32 = 1,806.77/x
  3. Step 3: Cross multiply
    3,999.58x = 5,999.32 × 1,806.77
  4. Step 4: Simplify right side
    3,999.58x = 10,839,391.40
  5. Step 5: Solve for x
    x = 10,839,391.40/3,999.58
  6. Step 6: Final answer
    x = 2,710.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.