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Finding the Fourth Proportional to 844.94, 1,261.29 and 730.12

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Solution

The fourth proportional to 844.94, 1,261.29 and 730.12 is: 1,089.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.94 : 1,261.29 = 730.12 : x
  2. Step 2: Convert to fraction form
    844.94/1,261.29 = 730.12/x
  3. Step 3: Cross multiply
    844.94x = 1,261.29 × 730.12
  4. Step 4: Simplify right side
    844.94x = 920,893.05
  5. Step 5: Solve for x
    x = 920,893.05/844.94
  6. Step 6: Final answer
    x = 1,089.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.