Home / 2,859.37-4,289.25-1,105.21

Finding the Fourth Proportional to 2,859.37, 4,289.25 and 1,105.21

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Solution

The fourth proportional to 2,859.37, 4,289.25 and 1,105.21 is: 1,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.37 : 4,289.25 = 1,105.21 : x
  2. Step 2: Convert to fraction form
    2,859.37/4,289.25 = 1,105.21/x
  3. Step 3: Cross multiply
    2,859.37x = 4,289.25 × 1,105.21
  4. Step 4: Simplify right side
    2,859.37x = 4,740,521.99
  5. Step 5: Solve for x
    x = 4,740,521.99/2,859.37
  6. Step 6: Final answer
    x = 1,657.89

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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.