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Finding the Fourth Proportional to 958.86, 1,438.16 and 595.98

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Solution

The fourth proportional to 958.86, 1,438.16 and 595.98 is: 893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.86 : 1,438.16 = 595.98 : x
  2. Step 2: Convert to fraction form
    958.86/1,438.16 = 595.98/x
  3. Step 3: Cross multiply
    958.86x = 1,438.16 × 595.98
  4. Step 4: Simplify right side
    958.86x = 857,111.62
  5. Step 5: Solve for x
    x = 857,111.62/958.86
  6. Step 6: Final answer
    x = 893.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.