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Finding the Fourth Proportional to 4,907.25, 7,361.75 and 1,787.00

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Solution

The fourth proportional to 4,907.25, 7,361.75 and 1,787.00 is: 2,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.25 : 7,361.75 = 1,787.00 : x
  2. Step 2: Convert to fraction form
    4,907.25/7,361.75 = 1,787.00/x
  3. Step 3: Cross multiply
    4,907.25x = 7,361.75 × 1,787.00
  4. Step 4: Simplify right side
    4,907.25x = 13,155,414.91
  5. Step 5: Solve for x
    x = 13,155,414.91/4,907.25
  6. Step 6: Final answer
    x = 2,680.81

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Double scale
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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.