Home / 2,431.92-3,652.56-2,160.36

Finding the Fourth Proportional to 2,431.92, 3,652.56 and 2,160.36

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Solution

The fourth proportional to 2,431.92, 3,652.56 and 2,160.36 is: 3,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.92 : 3,652.56 = 2,160.36 : x
  2. Step 2: Convert to fraction form
    2,431.92/3,652.56 = 2,160.36/x
  3. Step 3: Cross multiply
    2,431.92x = 3,652.56 × 2,160.36
  4. Step 4: Simplify right side
    2,431.92x = 7,890,844.52
  5. Step 5: Solve for x
    x = 7,890,844.52/2,431.92
  6. Step 6: Final answer
    x = 3,244.70

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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.