Home / 2,446.54-3,670.80-1,213.90

Finding the Fourth Proportional to 2,446.54, 3,670.80 and 1,213.90

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Solution

The fourth proportional to 2,446.54, 3,670.80 and 1,213.90 is: 1,821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,446.54 : 3,670.80 = 1,213.90 : x
  2. Step 2: Convert to fraction form
    2,446.54/3,670.80 = 1,213.90/x
  3. Step 3: Cross multiply
    2,446.54x = 3,670.80 × 1,213.90
  4. Step 4: Simplify right side
    2,446.54x = 4,455,984.12
  5. Step 5: Solve for x
    x = 4,455,984.12/2,446.54
  6. Step 6: Final answer
    x = 1,821.34

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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.