Home / 1,628.70-2,443.92-1,081.14

Finding the Fourth Proportional to 1,628.70, 2,443.92 and 1,081.14

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Solution

The fourth proportional to 1,628.70, 2,443.92 and 1,081.14 is: 1,622.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.70 : 2,443.92 = 1,081.14 : x
  2. Step 2: Convert to fraction form
    1,628.70/2,443.92 = 1,081.14/x
  3. Step 3: Cross multiply
    1,628.70x = 2,443.92 × 1,081.14
  4. Step 4: Simplify right side
    1,628.70x = 2,642,219.67
  5. Step 5: Solve for x
    x = 2,642,219.67/1,628.70
  6. Step 6: Final answer
    x = 1,622.29

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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.