Home / 7,136.90-10,708.43-2,977.73

Finding the Fourth Proportional to 7,136.90, 10,708.43 and 2,977.73

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Solution

The fourth proportional to 7,136.90, 10,708.43 and 2,977.73 is: 4,467.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.90 : 10,708.43 = 2,977.73 : x
  2. Step 2: Convert to fraction form
    7,136.90/10,708.43 = 2,977.73/x
  3. Step 3: Cross multiply
    7,136.90x = 10,708.43 × 2,977.73
  4. Step 4: Simplify right side
    7,136.90x = 31,886,784.99
  5. Step 5: Solve for x
    x = 31,886,784.99/7,136.90
  6. Step 6: Final answer
    x = 4,467.88

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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.