Home / 6,539.28-9,814.39-3,420.38

Finding the Fourth Proportional to 6,539.28, 9,814.39 and 3,420.38

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Solution

The fourth proportional to 6,539.28, 9,814.39 and 3,420.38 is: 5,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.28 : 9,814.39 = 3,420.38 : x
  2. Step 2: Convert to fraction form
    6,539.28/9,814.39 = 3,420.38/x
  3. Step 3: Cross multiply
    6,539.28x = 9,814.39 × 3,420.38
  4. Step 4: Simplify right side
    6,539.28x = 33,568,943.27
  5. Step 5: Solve for x
    x = 33,568,943.27/6,539.28
  6. Step 6: Final answer
    x = 5,133.43

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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.