Home / 7,035.84-9,708.78-3,891.96

Finding the Fourth Proportional to 7,035.84, 9,708.78 and 3,891.96

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Solution

The fourth proportional to 7,035.84, 9,708.78 and 3,891.96 is: 5,370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,035.84 : 9,708.78 = 3,891.96 : x
  2. Step 2: Convert to fraction form
    7,035.84/9,708.78 = 3,891.96/x
  3. Step 3: Cross multiply
    7,035.84x = 9,708.78 × 3,891.96
  4. Step 4: Simplify right side
    7,035.84x = 37,786,183.41
  5. Step 5: Solve for x
    x = 37,786,183.41/7,035.84
  6. Step 6: Final answer
    x = 5,370.53

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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.