Home / 6,172.34-8,515.42-3,933.80

Finding the Fourth Proportional to 6,172.34, 8,515.42 and 3,933.80

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Solution

The fourth proportional to 6,172.34, 8,515.42 and 3,933.80 is: 5,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.34 : 8,515.42 = 3,933.80 : x
  2. Step 2: Convert to fraction form
    6,172.34/8,515.42 = 3,933.80/x
  3. Step 3: Cross multiply
    6,172.34x = 8,515.42 × 3,933.80
  4. Step 4: Simplify right side
    6,172.34x = 33,497,959.20
  5. Step 5: Solve for x
    x = 33,497,959.20/6,172.34
  6. Step 6: Final answer
    x = 5,427.11

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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.