Home / 4,480.68-6,720.75-1,360.56

Finding the Fourth Proportional to 4,480.68, 6,720.75 and 1,360.56

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Solution

The fourth proportional to 4,480.68, 6,720.75 and 1,360.56 is: 2,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.68 : 6,720.75 = 1,360.56 : x
  2. Step 2: Convert to fraction form
    4,480.68/6,720.75 = 1,360.56/x
  3. Step 3: Cross multiply
    4,480.68x = 6,720.75 × 1,360.56
  4. Step 4: Simplify right side
    4,480.68x = 9,143,983.62
  5. Step 5: Solve for x
    x = 9,143,983.62/4,480.68
  6. Step 6: Final answer
    x = 2,040.76

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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.