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Finding the Fourth Proportional to 959.91, 1,323.72 and 894.39

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Solution

The fourth proportional to 959.91, 1,323.72 and 894.39 is: 1,233.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.91 : 1,323.72 = 894.39 : x
  2. Step 2: Convert to fraction form
    959.91/1,323.72 = 894.39/x
  3. Step 3: Cross multiply
    959.91x = 1,323.72 × 894.39
  4. Step 4: Simplify right side
    959.91x = 1,183,921.93
  5. Step 5: Solve for x
    x = 1,183,921.93/959.91
  6. Step 6: Final answer
    x = 1,233.37

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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.