Home / 4,811-7,217.04-2,215.76

Finding the Fourth Proportional to 4,811, 7,217.04 and 2,215.76

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Solution

The fourth proportional to 4,811, 7,217.04 and 2,215.76 is: 3,323.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811 : 7,217.04 = 2,215.76 : x
  2. Step 2: Convert to fraction form
    4,811/7,217.04 = 2,215.76/x
  3. Step 3: Cross multiply
    4,811x = 7,217.04 × 2,215.76
  4. Step 4: Simplify right side
    4,811x = 15,991,228.55
  5. Step 5: Solve for x
    x = 15,991,228.55/4,811
  6. Step 6: Final answer
    x = 3,323.89

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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.