Home / 2,318.10-3,198.74-1,323.42

Finding the Fourth Proportional to 2,318.10, 3,198.74 and 1,323.42

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Solution

The fourth proportional to 2,318.10, 3,198.74 and 1,323.42 is: 1,826.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.10 : 3,198.74 = 1,323.42 : x
  2. Step 2: Convert to fraction form
    2,318.10/3,198.74 = 1,323.42/x
  3. Step 3: Cross multiply
    2,318.10x = 3,198.74 × 1,323.42
  4. Step 4: Simplify right side
    2,318.10x = 4,233,269.87
  5. Step 5: Solve for x
    x = 4,233,269.87/2,318.10
  6. Step 6: Final answer
    x = 1,826.18

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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.