Home / 7,078.66-9,769.75-4,096.30

Finding the Fourth Proportional to 7,078.66, 9,769.75 and 4,096.30

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Solution

The fourth proportional to 7,078.66, 9,769.75 and 4,096.30 is: 5,653.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.66 : 9,769.75 = 4,096.30 : x
  2. Step 2: Convert to fraction form
    7,078.66/9,769.75 = 4,096.30/x
  3. Step 3: Cross multiply
    7,078.66x = 9,769.75 × 4,096.30
  4. Step 4: Simplify right side
    7,078.66x = 40,019,826.93
  5. Step 5: Solve for x
    x = 40,019,826.93/7,078.66
  6. Step 6: Final answer
    x = 5,653.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.