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Finding the Fourth Proportional to 3,999.32, 5,998.91 and 1,806.51

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Solution

The fourth proportional to 3,999.32, 5,998.91 and 1,806.51 is: 2,709.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.32 : 5,998.91 = 1,806.51 : x
  2. Step 2: Convert to fraction form
    3,999.32/5,998.91 = 1,806.51/x
  3. Step 3: Cross multiply
    3,999.32x = 5,998.91 × 1,806.51
  4. Step 4: Simplify right side
    3,999.32x = 10,837,095.42
  5. Step 5: Solve for x
    x = 10,837,095.42/3,999.32
  6. Step 6: Final answer
    x = 2,709.74

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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.