Home / 7,861.65-11,792.26-2,315.07

Finding the Fourth Proportional to 7,861.65, 11,792.26 and 2,315.07

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Solution

The fourth proportional to 7,861.65, 11,792.26 and 2,315.07 is: 3,472.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.65 : 11,792.26 = 2,315.07 : x
  2. Step 2: Convert to fraction form
    7,861.65/11,792.26 = 2,315.07/x
  3. Step 3: Cross multiply
    7,861.65x = 11,792.26 × 2,315.07
  4. Step 4: Simplify right side
    7,861.65x = 27,299,907.36
  5. Step 5: Solve for x
    x = 27,299,907.36/7,861.65
  6. Step 6: Final answer
    x = 3,472.54

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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.