Home / 7,977.65-11,961.90-2,429.35

Finding the Fourth Proportional to 7,977.65, 11,961.90 and 2,429.35

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Solution

The fourth proportional to 7,977.65, 11,961.90 and 2,429.35 is: 3,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.65 : 11,961.90 = 2,429.35 : x
  2. Step 2: Convert to fraction form
    7,977.65/11,961.90 = 2,429.35/x
  3. Step 3: Cross multiply
    7,977.65x = 11,961.90 × 2,429.35
  4. Step 4: Simplify right side
    7,977.65x = 29,059,611.86
  5. Step 5: Solve for x
    x = 29,059,611.86/7,977.65
  6. Step 6: Final answer
    x = 3,642.63

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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.