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Finding the Fourth Proportional to 3,370.75, 4,650.77 and 1,878.67

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Solution

The fourth proportional to 3,370.75, 4,650.77 and 1,878.67 is: 2,592.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.75 : 4,650.77 = 1,878.67 : x
  2. Step 2: Convert to fraction form
    3,370.75/4,650.77 = 1,878.67/x
  3. Step 3: Cross multiply
    3,370.75x = 4,650.77 × 1,878.67
  4. Step 4: Simplify right side
    3,370.75x = 8,737,255.15
  5. Step 5: Solve for x
    x = 8,737,255.15/3,370.75
  6. Step 6: Final answer
    x = 2,592.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.