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Finding the Fourth Proportional to 2,805.02, 4,207.14 and 955.86

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Solution

The fourth proportional to 2,805.02, 4,207.14 and 955.86 is: 1,433.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.02 : 4,207.14 = 955.86 : x
  2. Step 2: Convert to fraction form
    2,805.02/4,207.14 = 955.86/x
  3. Step 3: Cross multiply
    2,805.02x = 4,207.14 × 955.86
  4. Step 4: Simplify right side
    2,805.02x = 4,021,436.84
  5. Step 5: Solve for x
    x = 4,021,436.84/2,805.02
  6. Step 6: Final answer
    x = 1,433.66

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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.