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Finding the Fourth Proportional to 2,668.93, 3,683.01 and 1,489.98

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Solution

The fourth proportional to 2,668.93, 3,683.01 and 1,489.98 is: 2,056.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.93 : 3,683.01 = 1,489.98 : x
  2. Step 2: Convert to fraction form
    2,668.93/3,683.01 = 1,489.98/x
  3. Step 3: Cross multiply
    2,668.93x = 3,683.01 × 1,489.98
  4. Step 4: Simplify right side
    2,668.93x = 5,487,611.24
  5. Step 5: Solve for x
    x = 5,487,611.24/2,668.93
  6. Step 6: Final answer
    x = 2,056.11

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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.