Home / 7,619.65-11,423.98-3,457.57

Finding the Fourth Proportional to 7,619.65, 11,423.98 and 3,457.57

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Solution

The fourth proportional to 7,619.65, 11,423.98 and 3,457.57 is: 5,183.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.65 : 11,423.98 = 3,457.57 : x
  2. Step 2: Convert to fraction form
    7,619.65/11,423.98 = 3,457.57/x
  3. Step 3: Cross multiply
    7,619.65x = 11,423.98 × 3,457.57
  4. Step 4: Simplify right side
    7,619.65x = 39,499,136.12
  5. Step 5: Solve for x
    x = 39,499,136.12/7,619.65
  6. Step 6: Final answer
    x = 5,183.86

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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.