Home / 4,509.40-6,764.64-1,912

Finding the Fourth Proportional to 4,509.40, 6,764.64 and 1,912

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Solution

The fourth proportional to 4,509.40, 6,764.64 and 1,912 is: 2,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.40 : 6,764.64 = 1,912 : x
  2. Step 2: Convert to fraction form
    4,509.40/6,764.64 = 1,912/x
  3. Step 3: Cross multiply
    4,509.40x = 6,764.64 × 1,912
  4. Step 4: Simplify right side
    4,509.40x = 12,933,991.68
  5. Step 5: Solve for x
    x = 12,933,991.68/4,509.40
  6. Step 6: Final answer
    x = 2,868.23

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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.