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Finding the Fourth Proportional to 6,560, 9,840 and 1,696

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Solution

The fourth proportional to 6,560, 9,840 and 1,696 is: 2,544

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,560 : 9,840 = 1,696 : x
  2. Step 2: Convert to fraction form
    6,560/9,840 = 1,696/x
  3. Step 3: Cross multiply
    6,560x = 9,840 × 1,696
  4. Step 4: Simplify right side
    6,560x = 16,688,640
  5. Step 5: Solve for x
    x = 16,688,640/6,560
  6. Step 6: Final answer
    x = 2,544

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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.