Home / 4,771.81-7,154.07-3,211.75

Finding the Fourth Proportional to 4,771.81, 7,154.07 and 3,211.75

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Solution

The fourth proportional to 4,771.81, 7,154.07 and 3,211.75 is: 4,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,771.81 : 7,154.07 = 3,211.75 : x
  2. Step 2: Convert to fraction form
    4,771.81/7,154.07 = 3,211.75/x
  3. Step 3: Cross multiply
    4,771.81x = 7,154.07 × 3,211.75
  4. Step 4: Simplify right side
    4,771.81x = 22,977,084.32
  5. Step 5: Solve for x
    x = 22,977,084.32/4,771.81
  6. Step 6: Final answer
    x = 4,815.17

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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.