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Finding the Fourth Proportional to 4,995.50, 6,893.79 and 2,787.50

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Solution

The fourth proportional to 4,995.50, 6,893.79 and 2,787.50 is: 3,846.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,995.50 : 6,893.79 = 2,787.50 : x
  2. Step 2: Convert to fraction form
    4,995.50/6,893.79 = 2,787.50/x
  3. Step 3: Cross multiply
    4,995.50x = 6,893.79 × 2,787.50
  4. Step 4: Simplify right side
    4,995.50x = 19,216,439.63
  5. Step 5: Solve for x
    x = 19,216,439.63/4,995.50
  6. Step 6: Final answer
    x = 3,846.75

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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.