Home / 4,418.71-6,628.03-1,131.80

Finding the Fourth Proportional to 4,418.71, 6,628.03 and 1,131.80

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Solution

The fourth proportional to 4,418.71, 6,628.03 and 1,131.80 is: 1,697.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,418.71 : 6,628.03 = 1,131.80 : x
  2. Step 2: Convert to fraction form
    4,418.71/6,628.03 = 1,131.80/x
  3. Step 3: Cross multiply
    4,418.71x = 6,628.03 × 1,131.80
  4. Step 4: Simplify right side
    4,418.71x = 7,501,568.38
  5. Step 5: Solve for x
    x = 7,501,568.38/4,418.71
  6. Step 6: Final answer
    x = 1,697.68

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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.