Home / 2,318.28-3,199.31-1,323.71

Finding the Fourth Proportional to 2,318.28, 3,199.31 and 1,323.71

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Solution

The fourth proportional to 2,318.28, 3,199.31 and 1,323.71 is: 1,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.28 : 3,199.31 = 1,323.71 : x
  2. Step 2: Convert to fraction form
    2,318.28/3,199.31 = 1,323.71/x
  3. Step 3: Cross multiply
    2,318.28x = 3,199.31 × 1,323.71
  4. Step 4: Simplify right side
    2,318.28x = 4,234,936.03
  5. Step 5: Solve for x
    x = 4,234,936.03/2,318.28
  6. Step 6: Final answer
    x = 1,826.76

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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.