Home / 4,811.69-7,217.81-1,349.21

Finding the Fourth Proportional to 4,811.69, 7,217.81 and 1,349.21

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Solution

The fourth proportional to 4,811.69, 7,217.81 and 1,349.21 is: 2,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.69 : 7,217.81 = 1,349.21 : x
  2. Step 2: Convert to fraction form
    4,811.69/7,217.81 = 1,349.21/x
  3. Step 3: Cross multiply
    4,811.69x = 7,217.81 × 1,349.21
  4. Step 4: Simplify right side
    4,811.69x = 9,738,341.43
  5. Step 5: Solve for x
    x = 9,738,341.43/4,811.69
  6. Step 6: Final answer
    x = 2,023.89

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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.