Home / 7,621.26-11,429.19-3,457.77

Finding the Fourth Proportional to 7,621.26, 11,429.19 and 3,457.77

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Solution

The fourth proportional to 7,621.26, 11,429.19 and 3,457.77 is: 5,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.26 : 11,429.19 = 3,457.77 : x
  2. Step 2: Convert to fraction form
    7,621.26/11,429.19 = 3,457.77/x
  3. Step 3: Cross multiply
    7,621.26x = 11,429.19 × 3,457.77
  4. Step 4: Simplify right side
    7,621.26x = 39,519,510.31
  5. Step 5: Solve for x
    x = 39,519,510.31/7,621.26
  6. Step 6: Final answer
    x = 5,185.43

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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.