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Finding the Fourth Proportional to 4,907.28, 7,361.52 and 1,620.96

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Solution

The fourth proportional to 4,907.28, 7,361.52 and 1,620.96 is: 2,431.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.28 : 7,361.52 = 1,620.96 : x
  2. Step 2: Convert to fraction form
    4,907.28/7,361.52 = 1,620.96/x
  3. Step 3: Cross multiply
    4,907.28x = 7,361.52 × 1,620.96
  4. Step 4: Simplify right side
    4,907.28x = 11,932,729.46
  5. Step 5: Solve for x
    x = 11,932,729.46/4,907.28
  6. Step 6: Final answer
    x = 2,431.64

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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.