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Finding the Fourth Proportional to 1,847.57, 2,770.77 and 614.66

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Solution

The fourth proportional to 1,847.57, 2,770.77 and 614.66 is: 921.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,847.57 : 2,770.77 = 614.66 : x
  2. Step 2: Convert to fraction form
    1,847.57/2,770.77 = 614.66/x
  3. Step 3: Cross multiply
    1,847.57x = 2,770.77 × 614.66
  4. Step 4: Simplify right side
    1,847.57x = 1,703,067.63
  5. Step 5: Solve for x
    x = 1,703,067.63/1,847.57
  6. Step 6: Final answer
    x = 921.79

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1.5x scale

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.