Home / 6,243.78-8,614.35-4,120.37

Finding the Fourth Proportional to 6,243.78, 8,614.35 and 4,120.37

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Solution

The fourth proportional to 6,243.78, 8,614.35 and 4,120.37 is: 5,684.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.78 : 8,614.35 = 4,120.37 : x
  2. Step 2: Convert to fraction form
    6,243.78/8,614.35 = 4,120.37/x
  3. Step 3: Cross multiply
    6,243.78x = 8,614.35 × 4,120.37
  4. Step 4: Simplify right side
    6,243.78x = 35,494,266.24
  5. Step 5: Solve for x
    x = 35,494,266.24/6,243.78
  6. Step 6: Final answer
    x = 5,684.74

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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.