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Finding the Fourth Proportional to 958.60, 1,427.69 and 924.58

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Solution

The fourth proportional to 958.60, 1,427.69 and 924.58 is: 1,377.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.60 : 1,427.69 = 924.58 : x
  2. Step 2: Convert to fraction form
    958.60/1,427.69 = 924.58/x
  3. Step 3: Cross multiply
    958.60x = 1,427.69 × 924.58
  4. Step 4: Simplify right side
    958.60x = 1,320,013.62
  5. Step 5: Solve for x
    x = 1,320,013.62/958.60
  6. Step 6: Final answer
    x = 1,377.02

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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.