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Finding the Fourth Proportional to 2,737.58, 4,107.15 and 789.77

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Solution

The fourth proportional to 2,737.58, 4,107.15 and 789.77 is: 1,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,737.58 : 4,107.15 = 789.77 : x
  2. Step 2: Convert to fraction form
    2,737.58/4,107.15 = 789.77/x
  3. Step 3: Cross multiply
    2,737.58x = 4,107.15 × 789.77
  4. Step 4: Simplify right side
    2,737.58x = 3,243,714.12
  5. Step 5: Solve for x
    x = 3,243,714.12/2,737.58
  6. Step 6: Final answer
    x = 1,184.89

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1.5x scale

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.