Home / 1,414.18-1,950.68-1,021.78

Finding the Fourth Proportional to 1,414.18, 1,950.68 and 1,021.78

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Solution

The fourth proportional to 1,414.18, 1,950.68 and 1,021.78 is: 1,409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.18 : 1,950.68 = 1,021.78 : x
  2. Step 2: Convert to fraction form
    1,414.18/1,950.68 = 1,021.78/x
  3. Step 3: Cross multiply
    1,414.18x = 1,950.68 × 1,021.78
  4. Step 4: Simplify right side
    1,414.18x = 1,993,165.81
  5. Step 5: Solve for x
    x = 1,993,165.81/1,414.18
  6. Step 6: Final answer
    x = 1,409.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.