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Finding the Fourth Proportional to 6,160.59, 9,239.81 and 1,999.99

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Solution

The fourth proportional to 6,160.59, 9,239.81 and 1,999.99 is: 2,999.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,160.59 : 9,239.81 = 1,999.99 : x
  2. Step 2: Convert to fraction form
    6,160.59/9,239.81 = 1,999.99/x
  3. Step 3: Cross multiply
    6,160.59x = 9,239.81 × 1,999.99
  4. Step 4: Simplify right side
    6,160.59x = 18,479,529.15
  5. Step 5: Solve for x
    x = 18,479,529.15/6,160.59
  6. Step 6: Final answer
    x = 2,999.64

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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.