Home / 3,389.24-5,081.82-1,440.36

Finding the Fourth Proportional to 3,389.24, 5,081.82 and 1,440.36

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Solution

The fourth proportional to 3,389.24, 5,081.82 and 1,440.36 is: 2,159.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.24 : 5,081.82 = 1,440.36 : x
  2. Step 2: Convert to fraction form
    3,389.24/5,081.82 = 1,440.36/x
  3. Step 3: Cross multiply
    3,389.24x = 5,081.82 × 1,440.36
  4. Step 4: Simplify right side
    3,389.24x = 7,319,650.26
  5. Step 5: Solve for x
    x = 7,319,650.26/3,389.24
  6. Step 6: Final answer
    x = 2,159.67

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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.