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Finding the Fourth Proportional to 3,999.89, 6,000.59 and 1,808.61

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Solution

The fourth proportional to 3,999.89, 6,000.59 and 1,808.61 is: 2,713.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.89 : 6,000.59 = 1,808.61 : x
  2. Step 2: Convert to fraction form
    3,999.89/6,000.59 = 1,808.61/x
  3. Step 3: Cross multiply
    3,999.89x = 6,000.59 × 1,808.61
  4. Step 4: Simplify right side
    3,999.89x = 10,852,718.04
  5. Step 5: Solve for x
    x = 10,852,718.04/3,999.89
  6. Step 6: Final answer
    x = 2,713.26

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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.