Home / 4,915.89-6,783.67-2,791.37

Finding the Fourth Proportional to 4,915.89, 6,783.67 and 2,791.37

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Solution

The fourth proportional to 4,915.89, 6,783.67 and 2,791.37 is: 3,851.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.89 : 6,783.67 = 2,791.37 : x
  2. Step 2: Convert to fraction form
    4,915.89/6,783.67 = 2,791.37/x
  3. Step 3: Cross multiply
    4,915.89x = 6,783.67 × 2,791.37
  4. Step 4: Simplify right side
    4,915.89x = 18,935,692.03
  5. Step 5: Solve for x
    x = 18,935,692.03/4,915.89
  6. Step 6: Final answer
    x = 3,851.94

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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.