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Finding the Fourth Proportional to 1,178.77, 1,627.73 and 737.43

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Solution

The fourth proportional to 1,178.77, 1,627.73 and 737.43 is: 1,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.77 : 1,627.73 = 737.43 : x
  2. Step 2: Convert to fraction form
    1,178.77/1,627.73 = 737.43/x
  3. Step 3: Cross multiply
    1,178.77x = 1,627.73 × 737.43
  4. Step 4: Simplify right side
    1,178.77x = 1,200,336.93
  5. Step 5: Solve for x
    x = 1,200,336.93/1,178.77
  6. Step 6: Final answer
    x = 1,018.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.