Home / 6,073.40-8,380.32-3,420.80

Finding the Fourth Proportional to 6,073.40, 8,380.32 and 3,420.80

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Solution

The fourth proportional to 6,073.40, 8,380.32 and 3,420.80 is: 4,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,073.40 : 8,380.32 = 3,420.80 : x
  2. Step 2: Convert to fraction form
    6,073.40/8,380.32 = 3,420.80/x
  3. Step 3: Cross multiply
    6,073.40x = 8,380.32 × 3,420.80
  4. Step 4: Simplify right side
    6,073.40x = 28,667,398.66
  5. Step 5: Solve for x
    x = 28,667,398.66/6,073.40
  6. Step 6: Final answer
    x = 4,720.16

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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.