Home / 2,318.50-3,199.70-1,323.81

Finding the Fourth Proportional to 2,318.50, 3,199.70 and 1,323.81

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Solution

The fourth proportional to 2,318.50, 3,199.70 and 1,323.81 is: 1,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.50 : 3,199.70 = 1,323.81 : x
  2. Step 2: Convert to fraction form
    2,318.50/3,199.70 = 1,323.81/x
  3. Step 3: Cross multiply
    2,318.50x = 3,199.70 × 1,323.81
  4. Step 4: Simplify right side
    2,318.50x = 4,235,794.86
  5. Step 5: Solve for x
    x = 4,235,794.86/2,318.50
  6. Step 6: Final answer
    x = 1,826.95

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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.