Home / 2,821.14-4,230.63-1,665.54

Finding the Fourth Proportional to 2,821.14, 4,230.63 and 1,665.54

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Solution

The fourth proportional to 2,821.14, 4,230.63 and 1,665.54 is: 2,497.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.14 : 4,230.63 = 1,665.54 : x
  2. Step 2: Convert to fraction form
    2,821.14/4,230.63 = 1,665.54/x
  3. Step 3: Cross multiply
    2,821.14x = 4,230.63 × 1,665.54
  4. Step 4: Simplify right side
    2,821.14x = 7,046,283.49
  5. Step 5: Solve for x
    x = 7,046,283.49/2,821.14
  6. Step 6: Final answer
    x = 2,497.67

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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.