Home / 5,511.90-8,241.93-4,120.86

Finding the Fourth Proportional to 5,511.90, 8,241.93 and 4,120.86

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Solution

The fourth proportional to 5,511.90, 8,241.93 and 4,120.86 is: 6,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.90 : 8,241.93 = 4,120.86 : x
  2. Step 2: Convert to fraction form
    5,511.90/8,241.93 = 4,120.86/x
  3. Step 3: Cross multiply
    5,511.90x = 8,241.93 × 4,120.86
  4. Step 4: Simplify right side
    5,511.90x = 33,963,839.66
  5. Step 5: Solve for x
    x = 33,963,839.66/5,511.90
  6. Step 6: Final answer
    x = 6,161.91

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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.