Home / 1,414.36-2,123.70-1,324.18

Finding the Fourth Proportional to 1,414.36, 2,123.70 and 1,324.18

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Solution

The fourth proportional to 1,414.36, 2,123.70 and 1,324.18 is: 1,988.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414.36 : 2,123.70 = 1,324.18 : x
  2. Step 2: Convert to fraction form
    1,414.36/2,123.70 = 1,324.18/x
  3. Step 3: Cross multiply
    1,414.36x = 2,123.70 × 1,324.18
  4. Step 4: Simplify right side
    1,414.36x = 2,812,161.07
  5. Step 5: Solve for x
    x = 2,812,161.07/1,414.36
  6. Step 6: Final answer
    x = 1,988.29

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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.