Home / 1,289.04-1,936.05-1,104.36

Finding the Fourth Proportional to 1,289.04, 1,936.05 and 1,104.36

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Solution

The fourth proportional to 1,289.04, 1,936.05 and 1,104.36 is: 1,658.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289.04 : 1,936.05 = 1,104.36 : x
  2. Step 2: Convert to fraction form
    1,289.04/1,936.05 = 1,104.36/x
  3. Step 3: Cross multiply
    1,289.04x = 1,936.05 × 1,104.36
  4. Step 4: Simplify right side
    1,289.04x = 2,138,096.18
  5. Step 5: Solve for x
    x = 2,138,096.18/1,289.04
  6. Step 6: Final answer
    x = 1,658.67

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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.