Home / 8,490.60-12,738.78-3,297

Finding the Fourth Proportional to 8,490.60, 12,738.78 and 3,297

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Solution

The fourth proportional to 8,490.60, 12,738.78 and 3,297 is: 4,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.60 : 12,738.78 = 3,297 : x
  2. Step 2: Convert to fraction form
    8,490.60/12,738.78 = 3,297/x
  3. Step 3: Cross multiply
    8,490.60x = 12,738.78 × 3,297
  4. Step 4: Simplify right side
    8,490.60x = 41,999,757.66
  5. Step 5: Solve for x
    x = 41,999,757.66/8,490.60
  6. Step 6: Final answer
    x = 4,946.62

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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.