Home / 6,074.15-8,380.85-3,421.55

Finding the Fourth Proportional to 6,074.15, 8,380.85 and 3,421.55

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Solution

The fourth proportional to 6,074.15, 8,380.85 and 3,421.55 is: 4,720.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,074.15 : 8,380.85 = 3,421.55 : x
  2. Step 2: Convert to fraction form
    6,074.15/8,380.85 = 3,421.55/x
  3. Step 3: Cross multiply
    6,074.15x = 8,380.85 × 3,421.55
  4. Step 4: Simplify right side
    6,074.15x = 28,675,480.21
  5. Step 5: Solve for x
    x = 28,675,480.21/6,074.15
  6. Step 6: Final answer
    x = 4,720.91

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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.