Home / 3,431.92-5,145.68-1,583.45

Finding the Fourth Proportional to 3,431.92, 5,145.68 and 1,583.45

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Solution

The fourth proportional to 3,431.92, 5,145.68 and 1,583.45 is: 2,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.92 : 5,145.68 = 1,583.45 : x
  2. Step 2: Convert to fraction form
    3,431.92/5,145.68 = 1,583.45/x
  3. Step 3: Cross multiply
    3,431.92x = 5,145.68 × 1,583.45
  4. Step 4: Simplify right side
    3,431.92x = 8,147,915.62
  5. Step 5: Solve for x
    x = 8,147,915.62/3,431.92
  6. Step 6: Final answer
    x = 2,374.16

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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.