Home / 2,391.28-3,583.20-2,146.48

Finding the Fourth Proportional to 2,391.28, 3,583.20 and 2,146.48

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Solution

The fourth proportional to 2,391.28, 3,583.20 and 2,146.48 is: 3,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.28 : 3,583.20 = 2,146.48 : x
  2. Step 2: Convert to fraction form
    2,391.28/3,583.20 = 2,146.48/x
  3. Step 3: Cross multiply
    2,391.28x = 3,583.20 × 2,146.48
  4. Step 4: Simplify right side
    2,391.28x = 7,691,267.14
  5. Step 5: Solve for x
    x = 7,691,267.14/2,391.28
  6. Step 6: Final answer
    x = 3,216.38

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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.