Home / 2,069.84-3,102.60-1,289.84

Finding the Fourth Proportional to 2,069.84, 3,102.60 and 1,289.84

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Solution

The fourth proportional to 2,069.84, 3,102.60 and 1,289.84 is: 1,933.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.84 : 3,102.60 = 1,289.84 : x
  2. Step 2: Convert to fraction form
    2,069.84/3,102.60 = 1,289.84/x
  3. Step 3: Cross multiply
    2,069.84x = 3,102.60 × 1,289.84
  4. Step 4: Simplify right side
    2,069.84x = 4,001,857.58
  5. Step 5: Solve for x
    x = 4,001,857.58/2,069.84
  6. Step 6: Final answer
    x = 1,933.41

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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.