Home / 2,102.59-3,151.46-1,225.39

Finding the Fourth Proportional to 2,102.59, 3,151.46 and 1,225.39

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Solution

The fourth proportional to 2,102.59, 3,151.46 and 1,225.39 is: 1,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.59 : 3,151.46 = 1,225.39 : x
  2. Step 2: Convert to fraction form
    2,102.59/3,151.46 = 1,225.39/x
  3. Step 3: Cross multiply
    2,102.59x = 3,151.46 × 1,225.39
  4. Step 4: Simplify right side
    2,102.59x = 3,861,761.44
  5. Step 5: Solve for x
    x = 3,861,761.44/2,102.59
  6. Step 6: Final answer
    x = 1,836.67

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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.