Home / 2,860.35-4,289.65-1,105.23

Finding the Fourth Proportional to 2,860.35, 4,289.65 and 1,105.23

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Solution

The fourth proportional to 2,860.35, 4,289.65 and 1,105.23 is: 1,657.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.35 : 4,289.65 = 1,105.23 : x
  2. Step 2: Convert to fraction form
    2,860.35/4,289.65 = 1,105.23/x
  3. Step 3: Cross multiply
    2,860.35x = 4,289.65 × 1,105.23
  4. Step 4: Simplify right side
    2,860.35x = 4,741,049.87
  5. Step 5: Solve for x
    x = 4,741,049.87/2,860.35
  6. Step 6: Final answer
    x = 1,657.51

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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.