Home / 1,512.19-2,269.74-1,428.97

Finding the Fourth Proportional to 1,512.19, 2,269.74 and 1,428.97

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Solution

The fourth proportional to 1,512.19, 2,269.74 and 1,428.97 is: 2,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.19 : 2,269.74 = 1,428.97 : x
  2. Step 2: Convert to fraction form
    1,512.19/2,269.74 = 1,428.97/x
  3. Step 3: Cross multiply
    1,512.19x = 2,269.74 × 1,428.97
  4. Step 4: Simplify right side
    1,512.19x = 3,243,390.37
  5. Step 5: Solve for x
    x = 3,243,390.37/1,512.19
  6. Step 6: Final answer
    x = 2,144.83

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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.