Home / 2,122.75-3,180.57-1,503.46

Finding the Fourth Proportional to 2,122.75, 3,180.57 and 1,503.46

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Solution

The fourth proportional to 2,122.75, 3,180.57 and 1,503.46 is: 2,252.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.75 : 3,180.57 = 1,503.46 : x
  2. Step 2: Convert to fraction form
    2,122.75/3,180.57 = 1,503.46/x
  3. Step 3: Cross multiply
    2,122.75x = 3,180.57 × 1,503.46
  4. Step 4: Simplify right side
    2,122.75x = 4,781,859.77
  5. Step 5: Solve for x
    x = 4,781,859.77/2,122.75
  6. Step 6: Final answer
    x = 2,252.67

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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.