Home / 6,780.32-10,172.11-2,829.38

Finding the Fourth Proportional to 6,780.32, 10,172.11 and 2,829.38

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Solution

The fourth proportional to 6,780.32, 10,172.11 and 2,829.38 is: 4,244.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.32 : 10,172.11 = 2,829.38 : x
  2. Step 2: Convert to fraction form
    6,780.32/10,172.11 = 2,829.38/x
  3. Step 3: Cross multiply
    6,780.32x = 10,172.11 × 2,829.38
  4. Step 4: Simplify right side
    6,780.32x = 28,780,814.88
  5. Step 5: Solve for x
    x = 28,780,814.88/6,780.32
  6. Step 6: Final answer
    x = 4,244.75

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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.