Home / 4,099.85-6,149.77-1,178.15

Finding the Fourth Proportional to 4,099.85, 6,149.77 and 1,178.15

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Solution

The fourth proportional to 4,099.85, 6,149.77 and 1,178.15 is: 1,767.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,099.85 : 6,149.77 = 1,178.15 : x
  2. Step 2: Convert to fraction form
    4,099.85/6,149.77 = 1,178.15/x
  3. Step 3: Cross multiply
    4,099.85x = 6,149.77 × 1,178.15
  4. Step 4: Simplify right side
    4,099.85x = 7,245,363.95
  5. Step 5: Solve for x
    x = 7,245,363.95/4,099.85
  6. Step 6: Final answer
    x = 1,767.23

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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.