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Finding the Fourth Proportional to 964.98, 1,330.74 and 894.24

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Solution

The fourth proportional to 964.98, 1,330.74 and 894.24 is: 1,233.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.98 : 1,330.74 = 894.24 : x
  2. Step 2: Convert to fraction form
    964.98/1,330.74 = 894.24/x
  3. Step 3: Cross multiply
    964.98x = 1,330.74 × 894.24
  4. Step 4: Simplify right side
    964.98x = 1,190,000.94
  5. Step 5: Solve for x
    x = 1,190,000.94/964.98
  6. Step 6: Final answer
    x = 1,233.19

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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.