Home / 5,515.89-8,273.62-1,355.91

Finding the Fourth Proportional to 5,515.89, 8,273.62 and 1,355.91

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Solution

The fourth proportional to 5,515.89, 8,273.62 and 1,355.91 is: 2,033.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.89 : 8,273.62 = 1,355.91 : x
  2. Step 2: Convert to fraction form
    5,515.89/8,273.62 = 1,355.91/x
  3. Step 3: Cross multiply
    5,515.89x = 8,273.62 × 1,355.91
  4. Step 4: Simplify right side
    5,515.89x = 11,218,284.09
  5. Step 5: Solve for x
    x = 11,218,284.09/5,515.89
  6. Step 6: Final answer
    x = 2,033.81

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1.5x scale

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.