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Finding the Fourth Proportional to 6,543.36, 9,814.94 and 2,645

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Solution

The fourth proportional to 6,543.36, 9,814.94 and 2,645 is: 3,967.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543.36 : 9,814.94 = 2,645 : x
  2. Step 2: Convert to fraction form
    6,543.36/9,814.94 = 2,645/x
  3. Step 3: Cross multiply
    6,543.36x = 9,814.94 × 2,645
  4. Step 4: Simplify right side
    6,543.36x = 25,960,516.30
  5. Step 5: Solve for x
    x = 25,960,516.30/6,543.36
  6. Step 6: Final answer
    x = 3,967.46

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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.