Home / 6,408.12-8,841.13-4,020.20

Finding the Fourth Proportional to 6,408.12, 8,841.13 and 4,020.20

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Solution

The fourth proportional to 6,408.12, 8,841.13 and 4,020.20 is: 5,546.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,408.12 : 8,841.13 = 4,020.20 : x
  2. Step 2: Convert to fraction form
    6,408.12/8,841.13 = 4,020.20/x
  3. Step 3: Cross multiply
    6,408.12x = 8,841.13 × 4,020.20
  4. Step 4: Simplify right side
    6,408.12x = 35,543,089.72
  5. Step 5: Solve for x
    x = 35,543,089.72/6,408.12
  6. Step 6: Final answer
    x = 5,546.57

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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.