Home / 6,391.26-9,586.89-3,792.78

Finding the Fourth Proportional to 6,391.26, 9,586.89 and 3,792.78

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Solution

The fourth proportional to 6,391.26, 9,586.89 and 3,792.78 is: 5,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.26 : 9,586.89 = 3,792.78 : x
  2. Step 2: Convert to fraction form
    6,391.26/9,586.89 = 3,792.78/x
  3. Step 3: Cross multiply
    6,391.26x = 9,586.89 × 3,792.78
  4. Step 4: Simplify right side
    6,391.26x = 36,360,964.65
  5. Step 5: Solve for x
    x = 36,360,964.65/6,391.26
  6. Step 6: Final answer
    x = 5,689.17

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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.