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Finding the Fourth Proportional to 5,938.40, 8,929.20 and 5,808.80

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Solution

The fourth proportional to 5,938.40, 8,929.20 and 5,808.80 is: 8,734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,938.40 : 8,929.20 = 5,808.80 : x
  2. Step 2: Convert to fraction form
    5,938.40/8,929.20 = 5,808.80/x
  3. Step 3: Cross multiply
    5,938.40x = 8,929.20 × 5,808.80
  4. Step 4: Simplify right side
    5,938.40x = 51,867,936.96
  5. Step 5: Solve for x
    x = 51,867,936.96/5,938.40
  6. Step 6: Final answer
    x = 8,734.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.