Home / 5,512.81-8,270.35-1,815.26

Finding the Fourth Proportional to 5,512.81, 8,270.35 and 1,815.26

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Solution

The fourth proportional to 5,512.81, 8,270.35 and 1,815.26 is: 2,723.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,512.81 : 8,270.35 = 1,815.26 : x
  2. Step 2: Convert to fraction form
    5,512.81/8,270.35 = 1,815.26/x
  3. Step 3: Cross multiply
    5,512.81x = 8,270.35 × 1,815.26
  4. Step 4: Simplify right side
    5,512.81x = 15,012,810.33
  5. Step 5: Solve for x
    x = 15,012,810.33/5,512.81
  6. Step 6: Final answer
    x = 2,723.26

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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.