Home / 1,443.24-2,162.48-1,389.26

Finding the Fourth Proportional to 1,443.24, 2,162.48 and 1,389.26

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Solution

The fourth proportional to 1,443.24, 2,162.48 and 1,389.26 is: 2,081.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443.24 : 2,162.48 = 1,389.26 : x
  2. Step 2: Convert to fraction form
    1,443.24/2,162.48 = 1,389.26/x
  3. Step 3: Cross multiply
    1,443.24x = 2,162.48 × 1,389.26
  4. Step 4: Simplify right side
    1,443.24x = 3,004,246.96
  5. Step 5: Solve for x
    x = 3,004,246.96/1,443.24
  6. Step 6: Final answer
    x = 2,081.60

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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.