Home / 5,515.38-8,273.34-1,620.09

Finding the Fourth Proportional to 5,515.38, 8,273.34 and 1,620.09

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Solution

The fourth proportional to 5,515.38, 8,273.34 and 1,620.09 is: 2,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.38 : 8,273.34 = 1,620.09 : x
  2. Step 2: Convert to fraction form
    5,515.38/8,273.34 = 1,620.09/x
  3. Step 3: Cross multiply
    5,515.38x = 8,273.34 × 1,620.09
  4. Step 4: Simplify right side
    5,515.38x = 13,403,555.40
  5. Step 5: Solve for x
    x = 13,403,555.40/5,515.38
  6. Step 6: Final answer
    x = 2,430.21

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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.