Home / 2,683.14-4,021.80-1,039.20

Finding the Fourth Proportional to 2,683.14, 4,021.80 and 1,039.20

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Solution

The fourth proportional to 2,683.14, 4,021.80 and 1,039.20 is: 1,557.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,683.14 : 4,021.80 = 1,039.20 : x
  2. Step 2: Convert to fraction form
    2,683.14/4,021.80 = 1,039.20/x
  3. Step 3: Cross multiply
    2,683.14x = 4,021.80 × 1,039.20
  4. Step 4: Simplify right side
    2,683.14x = 4,179,454.56
  5. Step 5: Solve for x
    x = 4,179,454.56/2,683.14
  6. Step 6: Final answer
    x = 1,557.67

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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.