Home / 2,446.80-3,670.20-985.56

Finding the Fourth Proportional to 2,446.80, 3,670.20 and 985.56

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Solution

The fourth proportional to 2,446.80, 3,670.20 and 985.56 is: 1,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,446.80 : 3,670.20 = 985.56 : x
  2. Step 2: Convert to fraction form
    2,446.80/3,670.20 = 985.56/x
  3. Step 3: Cross multiply
    2,446.80x = 3,670.20 × 985.56
  4. Step 4: Simplify right side
    2,446.80x = 3,617,202.31
  5. Step 5: Solve for x
    x = 3,617,202.31/2,446.80
  6. Step 6: Final answer
    x = 1,478.34

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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.