Home / 2,198.24-3,032.40-1,313.48

Finding the Fourth Proportional to 2,198.24, 3,032.40 and 1,313.48

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Solution

The fourth proportional to 2,198.24, 3,032.40 and 1,313.48 is: 1,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.24 : 3,032.40 = 1,313.48 : x
  2. Step 2: Convert to fraction form
    2,198.24/3,032.40 = 1,313.48/x
  3. Step 3: Cross multiply
    2,198.24x = 3,032.40 × 1,313.48
  4. Step 4: Simplify right side
    2,198.24x = 3,982,996.75
  5. Step 5: Solve for x
    x = 3,982,996.75/2,198.24
  6. Step 6: Final answer
    x = 1,811.90

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1.5x scale

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.