Home / 1,408.14-2,114.34-862.62

Finding the Fourth Proportional to 1,408.14, 2,114.34 and 862.62

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Solution

The fourth proportional to 1,408.14, 2,114.34 and 862.62 is: 1,295.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408.14 : 2,114.34 = 862.62 : x
  2. Step 2: Convert to fraction form
    1,408.14/2,114.34 = 862.62/x
  3. Step 3: Cross multiply
    1,408.14x = 2,114.34 × 862.62
  4. Step 4: Simplify right side
    1,408.14x = 1,823,871.97
  5. Step 5: Solve for x
    x = 1,823,871.97/1,408.14
  6. Step 6: Final answer
    x = 1,295.23

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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.