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Finding the Fourth Proportional to 4,907.97, 6,772.79 and 2,783.64

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Solution

The fourth proportional to 4,907.97, 6,772.79 and 2,783.64 is: 3,841.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.97 : 6,772.79 = 2,783.64 : x
  2. Step 2: Convert to fraction form
    4,907.97/6,772.79 = 2,783.64/x
  3. Step 3: Cross multiply
    4,907.97x = 6,772.79 × 2,783.64
  4. Step 4: Simplify right side
    4,907.97x = 18,853,009.16
  5. Step 5: Solve for x
    x = 18,853,009.16/4,907.97
  6. Step 6: Final answer
    x = 3,841.31

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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.