Home / 3,123.22-4,308.69-1,880.50

Finding the Fourth Proportional to 3,123.22, 4,308.69 and 1,880.50

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Solution

The fourth proportional to 3,123.22, 4,308.69 and 1,880.50 is: 2,594.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.22 : 4,308.69 = 1,880.50 : x
  2. Step 2: Convert to fraction form
    3,123.22/4,308.69 = 1,880.50/x
  3. Step 3: Cross multiply
    3,123.22x = 4,308.69 × 1,880.50
  4. Step 4: Simplify right side
    3,123.22x = 8,102,491.55
  5. Step 5: Solve for x
    x = 8,102,491.55/3,123.22
  6. Step 6: Final answer
    x = 2,594.27

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