Home / 2,814.76-4,219.31-1,353.12

Finding the Fourth Proportional to 2,814.76, 4,219.31 and 1,353.12

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Solution

The fourth proportional to 2,814.76, 4,219.31 and 1,353.12 is: 2,028.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.76 : 4,219.31 = 1,353.12 : x
  2. Step 2: Convert to fraction form
    2,814.76/4,219.31 = 1,353.12/x
  3. Step 3: Cross multiply
    2,814.76x = 4,219.31 × 1,353.12
  4. Step 4: Simplify right side
    2,814.76x = 5,709,212.70
  5. Step 5: Solve for x
    x = 5,709,212.70/2,814.76
  6. Step 6: Final answer
    x = 2,028.31

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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.