Home / 4,811.56-7,212.38-1,849.20

Finding the Fourth Proportional to 4,811.56, 7,212.38 and 1,849.20

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Solution

The fourth proportional to 4,811.56, 7,212.38 and 1,849.20 is: 2,771.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.56 : 7,212.38 = 1,849.20 : x
  2. Step 2: Convert to fraction form
    4,811.56/7,212.38 = 1,849.20/x
  3. Step 3: Cross multiply
    4,811.56x = 7,212.38 × 1,849.20
  4. Step 4: Simplify right side
    4,811.56x = 13,337,133.10
  5. Step 5: Solve for x
    x = 13,337,133.10/4,811.56
  6. Step 6: Final answer
    x = 2,771.89

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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.