Home / 8,609.02-12,912.31-2,764.87

Finding the Fourth Proportional to 8,609.02, 12,912.31 and 2,764.87

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Solution

The fourth proportional to 8,609.02, 12,912.31 and 2,764.87 is: 4,146.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.02 : 12,912.31 = 2,764.87 : x
  2. Step 2: Convert to fraction form
    8,609.02/12,912.31 = 2,764.87/x
  3. Step 3: Cross multiply
    8,609.02x = 12,912.31 × 2,764.87
  4. Step 4: Simplify right side
    8,609.02x = 35,700,858.55
  5. Step 5: Solve for x
    x = 35,700,858.55/8,609.02
  6. Step 6: Final answer
    x = 4,146.91

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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.