Home / 4,761.09-7,136.67-1,989.36

Finding the Fourth Proportional to 4,761.09, 7,136.67 and 1,989.36

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Solution

The fourth proportional to 4,761.09, 7,136.67 and 1,989.36 is: 2,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.09 : 7,136.67 = 1,989.36 : x
  2. Step 2: Convert to fraction form
    4,761.09/7,136.67 = 1,989.36/x
  3. Step 3: Cross multiply
    4,761.09x = 7,136.67 × 1,989.36
  4. Step 4: Simplify right side
    4,761.09x = 14,197,405.83
  5. Step 5: Solve for x
    x = 14,197,405.83/4,761.09
  6. Step 6: Final answer
    x = 2,981.97

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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.