Home / 6,078.72-9,120.34-2,569.64

Finding the Fourth Proportional to 6,078.72, 9,120.34 and 2,569.64

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Solution

The fourth proportional to 6,078.72, 9,120.34 and 2,569.64 is: 3,855.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,078.72 : 9,120.34 = 2,569.64 : x
  2. Step 2: Convert to fraction form
    6,078.72/9,120.34 = 2,569.64/x
  3. Step 3: Cross multiply
    6,078.72x = 9,120.34 × 2,569.64
  4. Step 4: Simplify right side
    6,078.72x = 23,435,990.48
  5. Step 5: Solve for x
    x = 23,435,990.48/6,078.72
  6. Step 6: Final answer
    x = 3,855.42

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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.