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Finding the Fourth Proportional to 737.77, 1,012.79 and 730.85

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Solution

The fourth proportional to 737.77, 1,012.79 and 730.85 is: 1,003.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.77 : 1,012.79 = 730.85 : x
  2. Step 2: Convert to fraction form
    737.77/1,012.79 = 730.85/x
  3. Step 3: Cross multiply
    737.77x = 1,012.79 × 730.85
  4. Step 4: Simplify right side
    737.77x = 740,188.85
  5. Step 5: Solve for x
    x = 740,188.85/737.77
  6. Step 6: Final answer
    x = 1,003.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.