Home / 1,905.24-2,630.20-1,198.11

Finding the Fourth Proportional to 1,905.24, 2,630.20 and 1,198.11

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Solution

The fourth proportional to 1,905.24, 2,630.20 and 1,198.11 is: 1,654.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.24 : 2,630.20 = 1,198.11 : x
  2. Step 2: Convert to fraction form
    1,905.24/2,630.20 = 1,198.11/x
  3. Step 3: Cross multiply
    1,905.24x = 2,630.20 × 1,198.11
  4. Step 4: Simplify right side
    1,905.24x = 3,151,268.92
  5. Step 5: Solve for x
    x = 3,151,268.92/1,905.24
  6. Step 6: Final answer
    x = 1,654.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.