Home / 6,868.84-10,303.44-1,939

Finding the Fourth Proportional to 6,868.84, 10,303.44 and 1,939

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Solution

The fourth proportional to 6,868.84, 10,303.44 and 1,939 is: 2,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.84 : 10,303.44 = 1,939 : x
  2. Step 2: Convert to fraction form
    6,868.84/10,303.44 = 1,939/x
  3. Step 3: Cross multiply
    6,868.84x = 10,303.44 × 1,939
  4. Step 4: Simplify right side
    6,868.84x = 19,978,370.16
  5. Step 5: Solve for x
    x = 19,978,370.16/6,868.84
  6. Step 6: Final answer
    x = 2,908.55

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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.