Home / 7,288.21-10,933.80-2,905.30

Finding the Fourth Proportional to 7,288.21, 10,933.80 and 2,905.30

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Solution

The fourth proportional to 7,288.21, 10,933.80 and 2,905.30 is: 4,358.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.21 : 10,933.80 = 2,905.30 : x
  2. Step 2: Convert to fraction form
    7,288.21/10,933.80 = 2,905.30/x
  3. Step 3: Cross multiply
    7,288.21x = 10,933.80 × 2,905.30
  4. Step 4: Simplify right side
    7,288.21x = 31,765,969.14
  5. Step 5: Solve for x
    x = 31,765,969.14/7,288.21
  6. Step 6: Final answer
    x = 4,358.54

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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.