Home / 3,491.43-5,232.68-1,638.45

Finding the Fourth Proportional to 3,491.43, 5,232.68 and 1,638.45

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Solution

The fourth proportional to 3,491.43, 5,232.68 and 1,638.45 is: 2,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.43 : 5,232.68 = 1,638.45 : x
  2. Step 2: Convert to fraction form
    3,491.43/5,232.68 = 1,638.45/x
  3. Step 3: Cross multiply
    3,491.43x = 5,232.68 × 1,638.45
  4. Step 4: Simplify right side
    3,491.43x = 8,573,484.55
  5. Step 5: Solve for x
    x = 8,573,484.55/3,491.43
  6. Step 6: Final answer
    x = 2,455.58

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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.