Home / 1,786.28-2,683.53-1,267.57

Finding the Fourth Proportional to 1,786.28, 2,683.53 and 1,267.57

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Solution

The fourth proportional to 1,786.28, 2,683.53 and 1,267.57 is: 1,904.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.28 : 2,683.53 = 1,267.57 : x
  2. Step 2: Convert to fraction form
    1,786.28/2,683.53 = 1,267.57/x
  3. Step 3: Cross multiply
    1,786.28x = 2,683.53 × 1,267.57
  4. Step 4: Simplify right side
    1,786.28x = 3,401,562.12
  5. Step 5: Solve for x
    x = 3,401,562.12/1,786.28
  6. Step 6: Final answer
    x = 1,904.27

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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.