Home / 4,939.84-7,415.55-3,900.54

Finding the Fourth Proportional to 4,939.84, 7,415.55 and 3,900.54

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Solution

The fourth proportional to 4,939.84, 7,415.55 and 3,900.54 is: 5,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.84 : 7,415.55 = 3,900.54 : x
  2. Step 2: Convert to fraction form
    4,939.84/7,415.55 = 3,900.54/x
  3. Step 3: Cross multiply
    4,939.84x = 7,415.55 × 3,900.54
  4. Step 4: Simplify right side
    4,939.84x = 28,924,649.40
  5. Step 5: Solve for x
    x = 28,924,649.40/4,939.84
  6. Step 6: Final answer
    x = 5,855.38

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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.