Home / 5,428.46-8,143.07-2,308.12

Finding the Fourth Proportional to 5,428.46, 8,143.07 and 2,308.12

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Solution

The fourth proportional to 5,428.46, 8,143.07 and 2,308.12 is: 3,462.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.46 : 8,143.07 = 2,308.12 : x
  2. Step 2: Convert to fraction form
    5,428.46/8,143.07 = 2,308.12/x
  3. Step 3: Cross multiply
    5,428.46x = 8,143.07 × 2,308.12
  4. Step 4: Simplify right side
    5,428.46x = 18,795,150.83
  5. Step 5: Solve for x
    x = 18,795,150.83/5,428.46
  6. Step 6: Final answer
    x = 3,462.33

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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.