Home / 2,391.23-3,582.11-2,211.80

Finding the Fourth Proportional to 2,391.23, 3,582.11 and 2,211.80

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Solution

The fourth proportional to 2,391.23, 3,582.11 and 2,211.80 is: 3,313.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.23 : 3,582.11 = 2,211.80 : x
  2. Step 2: Convert to fraction form
    2,391.23/3,582.11 = 2,211.80/x
  3. Step 3: Cross multiply
    2,391.23x = 3,582.11 × 2,211.80
  4. Step 4: Simplify right side
    2,391.23x = 7,922,881.93
  5. Step 5: Solve for x
    x = 7,922,881.93/2,391.23
  6. Step 6: Final answer
    x = 3,313.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.