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Finding the Fourth Proportional to 7,951.40, 11,927.21 and 2,404.79

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Solution

The fourth proportional to 7,951.40, 11,927.21 and 2,404.79 is: 3,607.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.40 : 11,927.21 = 2,404.79 : x
  2. Step 2: Convert to fraction form
    7,951.40/11,927.21 = 2,404.79/x
  3. Step 3: Cross multiply
    7,951.40x = 11,927.21 × 2,404.79
  4. Step 4: Simplify right side
    7,951.40x = 28,682,363.68
  5. Step 5: Solve for x
    x = 28,682,363.68/7,951.40
  6. Step 6: Final answer
    x = 3,607.21

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1.5x scale

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.