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Finding the Fourth Proportional to 1,847.69, 2,770.50 and 614.77

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Solution

The fourth proportional to 1,847.69, 2,770.50 and 614.77 is: 921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,847.69 : 2,770.50 = 614.77 : x
  2. Step 2: Convert to fraction form
    1,847.69/2,770.50 = 614.77/x
  3. Step 3: Cross multiply
    1,847.69x = 2,770.50 × 614.77
  4. Step 4: Simplify right side
    1,847.69x = 1,703,220.29
  5. Step 5: Solve for x
    x = 1,703,220.29/1,847.69
  6. Step 6: Final answer
    x = 921.81

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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.