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Finding the Fourth Proportional to 5,938.05, 8,907.54 and 1,989.32

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Solution

The fourth proportional to 5,938.05, 8,907.54 and 1,989.32 is: 2,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,938.05 : 8,907.54 = 1,989.32 : x
  2. Step 2: Convert to fraction form
    5,938.05/8,907.54 = 1,989.32/x
  3. Step 3: Cross multiply
    5,938.05x = 8,907.54 × 1,989.32
  4. Step 4: Simplify right side
    5,938.05x = 17,719,902.94
  5. Step 5: Solve for x
    x = 17,719,902.94/5,938.05
  6. Step 6: Final answer
    x = 2,984.13

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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.