Home / 4,985.80-7,470.30-3,941.80

Finding the Fourth Proportional to 4,985.80, 7,470.30 and 3,941.80

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Solution

The fourth proportional to 4,985.80, 7,470.30 and 3,941.80 is: 5,906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.80 : 7,470.30 = 3,941.80 : x
  2. Step 2: Convert to fraction form
    4,985.80/7,470.30 = 3,941.80/x
  3. Step 3: Cross multiply
    4,985.80x = 7,470.30 × 3,941.80
  4. Step 4: Simplify right side
    4,985.80x = 29,446,428.54
  5. Step 5: Solve for x
    x = 29,446,428.54/4,985.80
  6. Step 6: Final answer
    x = 5,906.06

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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.