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Finding the Fourth Proportional to 2,985.25, 4,477.95 and 794.04

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Solution

The fourth proportional to 2,985.25, 4,477.95 and 794.04 is: 1,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.25 : 4,477.95 = 794.04 : x
  2. Step 2: Convert to fraction form
    2,985.25/4,477.95 = 794.04/x
  3. Step 3: Cross multiply
    2,985.25x = 4,477.95 × 794.04
  4. Step 4: Simplify right side
    2,985.25x = 3,555,671.42
  5. Step 5: Solve for x
    x = 3,555,671.42/2,985.25
  6. Step 6: Final answer
    x = 1,191.08

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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.