Home / 2,787.76-3,841.86-2,000.44

Finding the Fourth Proportional to 2,787.76, 3,841.86 and 2,000.44

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Solution

The fourth proportional to 2,787.76, 3,841.86 and 2,000.44 is: 2,756.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.76 : 3,841.86 = 2,000.44 : x
  2. Step 2: Convert to fraction form
    2,787.76/3,841.86 = 2,000.44/x
  3. Step 3: Cross multiply
    2,787.76x = 3,841.86 × 2,000.44
  4. Step 4: Simplify right side
    2,787.76x = 7,685,410.42
  5. Step 5: Solve for x
    x = 7,685,410.42/2,787.76
  6. Step 6: Final answer
    x = 2,756.84

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1.5x scale

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.