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Finding the Fourth Proportional to 2,737.55, 4,106.40 and 789.75

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Solution

The fourth proportional to 2,737.55, 4,106.40 and 789.75 is: 1,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,737.55 : 4,106.40 = 789.75 : x
  2. Step 2: Convert to fraction form
    2,737.55/4,106.40 = 789.75/x
  3. Step 3: Cross multiply
    2,737.55x = 4,106.40 × 789.75
  4. Step 4: Simplify right side
    2,737.55x = 3,243,026.44
  5. Step 5: Solve for x
    x = 3,243,026.44/2,737.55
  6. Step 6: Final answer
    x = 1,184.65

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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.