Home / 5,406.78-8,113.36-2,286.60

Finding the Fourth Proportional to 5,406.78, 8,113.36 and 2,286.60

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Solution

The fourth proportional to 5,406.78, 8,113.36 and 2,286.60 is: 3,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.78 : 8,113.36 = 2,286.60 : x
  2. Step 2: Convert to fraction form
    5,406.78/8,113.36 = 2,286.60/x
  3. Step 3: Cross multiply
    5,406.78x = 8,113.36 × 2,286.60
  4. Step 4: Simplify right side
    5,406.78x = 18,552,008.98
  5. Step 5: Solve for x
    x = 18,552,008.98/5,406.78
  6. Step 6: Final answer
    x = 3,431.25

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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.