Home / 4,923-7,384.50-1,275

Finding the Fourth Proportional to 4,923, 7,384.50 and 1,275

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Solution

The fourth proportional to 4,923, 7,384.50 and 1,275 is: 1,912.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,923 : 7,384.50 = 1,275 : x
  2. Step 2: Convert to fraction form
    4,923/7,384.50 = 1,275/x
  3. Step 3: Cross multiply
    4,923x = 7,384.50 × 1,275
  4. Step 4: Simplify right side
    4,923x = 9,415,237.50
  5. Step 5: Solve for x
    x = 9,415,237.50/4,923
  6. Step 6: Final answer
    x = 1,912.50

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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.