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Finding the Fourth Proportional to 4,289.09, 5,919.09 and 2,520.67

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Solution

The fourth proportional to 4,289.09, 5,919.09 and 2,520.67 is: 3,478.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.09 : 5,919.09 = 2,520.67 : x
  2. Step 2: Convert to fraction form
    4,289.09/5,919.09 = 2,520.67/x
  3. Step 3: Cross multiply
    4,289.09x = 5,919.09 × 2,520.67
  4. Step 4: Simplify right side
    4,289.09x = 14,920,072.59
  5. Step 5: Solve for x
    x = 14,920,072.59/4,289.09
  6. Step 6: Final answer
    x = 3,478.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.