Home / 5,429.08-8,150.10-3,489.40

Finding the Fourth Proportional to 5,429.08, 8,150.10 and 3,489.40

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Solution

The fourth proportional to 5,429.08, 8,150.10 and 3,489.40 is: 5,238.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.08 : 8,150.10 = 3,489.40 : x
  2. Step 2: Convert to fraction form
    5,429.08/8,150.10 = 3,489.40/x
  3. Step 3: Cross multiply
    5,429.08x = 8,150.10 × 3,489.40
  4. Step 4: Simplify right side
    5,429.08x = 28,438,958.94
  5. Step 5: Solve for x
    x = 28,438,958.94/5,429.08
  6. Step 6: Final answer
    x = 5,238.26

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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.