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Finding the Fourth Proportional to 1,938.22, 2,674.79 and 1,099.01

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Solution

The fourth proportional to 1,938.22, 2,674.79 and 1,099.01 is: 1,516.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.22 : 2,674.79 = 1,099.01 : x
  2. Step 2: Convert to fraction form
    1,938.22/2,674.79 = 1,099.01/x
  3. Step 3: Cross multiply
    1,938.22x = 2,674.79 × 1,099.01
  4. Step 4: Simplify right side
    1,938.22x = 2,939,620.96
  5. Step 5: Solve for x
    x = 2,939,620.96/1,938.22
  6. Step 6: Final answer
    x = 1,516.66

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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.