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Finding the Fourth Proportional to 4,907.85, 6,772.45 and 2,783.41

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Solution

The fourth proportional to 4,907.85, 6,772.45 and 2,783.41 is: 3,840.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.85 : 6,772.45 = 2,783.41 : x
  2. Step 2: Convert to fraction form
    4,907.85/6,772.45 = 2,783.41/x
  3. Step 3: Cross multiply
    4,907.85x = 6,772.45 × 2,783.41
  4. Step 4: Simplify right side
    4,907.85x = 18,850,505.05
  5. Step 5: Solve for x
    x = 18,850,505.05/4,907.85
  6. Step 6: Final answer
    x = 3,840.89

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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.