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Finding the Fourth Proportional to 958.29, 1,322.85 and 585.41

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Solution

The fourth proportional to 958.29, 1,322.85 and 585.41 is: 808.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.29 : 1,322.85 = 585.41 : x
  2. Step 2: Convert to fraction form
    958.29/1,322.85 = 585.41/x
  3. Step 3: Cross multiply
    958.29x = 1,322.85 × 585.41
  4. Step 4: Simplify right side
    958.29x = 774,409.62
  5. Step 5: Solve for x
    x = 774,409.62/958.29
  6. Step 6: Final answer
    x = 808.12

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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.