Home / 3,907.95-5,855.76-1,439.37

Finding the Fourth Proportional to 3,907.95, 5,855.76 and 1,439.37

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Solution

The fourth proportional to 3,907.95, 5,855.76 and 1,439.37 is: 2,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.95 : 5,855.76 = 1,439.37 : x
  2. Step 2: Convert to fraction form
    3,907.95/5,855.76 = 1,439.37/x
  3. Step 3: Cross multiply
    3,907.95x = 5,855.76 × 1,439.37
  4. Step 4: Simplify right side
    3,907.95x = 8,428,605.27
  5. Step 5: Solve for x
    x = 8,428,605.27/3,907.95
  6. Step 6: Final answer
    x = 2,156.78

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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.