Home / 5,406.30-8,109.08-3,326.64

Finding the Fourth Proportional to 5,406.30, 8,109.08 and 3,326.64

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Solution

The fourth proportional to 5,406.30, 8,109.08 and 3,326.64 is: 4,989.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.30 : 8,109.08 = 3,326.64 : x
  2. Step 2: Convert to fraction form
    5,406.30/8,109.08 = 3,326.64/x
  3. Step 3: Cross multiply
    5,406.30x = 8,109.08 × 3,326.64
  4. Step 4: Simplify right side
    5,406.30x = 26,975,989.89
  5. Step 5: Solve for x
    x = 26,975,989.89/5,406.30
  6. Step 6: Final answer
    x = 4,989.73

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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.