Home / 7,931.41-11,890.08-2,997.61

Finding the Fourth Proportional to 7,931.41, 11,890.08 and 2,997.61

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Solution

The fourth proportional to 7,931.41, 11,890.08 and 2,997.61 is: 4,493.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.41 : 11,890.08 = 2,997.61 : x
  2. Step 2: Convert to fraction form
    7,931.41/11,890.08 = 2,997.61/x
  3. Step 3: Cross multiply
    7,931.41x = 11,890.08 × 2,997.61
  4. Step 4: Simplify right side
    7,931.41x = 35,641,792.98
  5. Step 5: Solve for x
    x = 35,641,792.98/7,931.41
  6. Step 6: Final answer
    x = 4,493.75

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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.