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Finding the Fourth Proportional to 2,985.91, 4,479.09 and 794.59

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Solution

The fourth proportional to 2,985.91, 4,479.09 and 794.59 is: 1,191.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.91 : 4,479.09 = 794.59 : x
  2. Step 2: Convert to fraction form
    2,985.91/4,479.09 = 794.59/x
  3. Step 3: Cross multiply
    2,985.91x = 4,479.09 × 794.59
  4. Step 4: Simplify right side
    2,985.91x = 3,559,040.12
  5. Step 5: Solve for x
    x = 3,559,040.12/2,985.91
  6. Step 6: Final answer
    x = 1,191.94

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