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Finding the Fourth Proportional to 3,453.61, 5,182.58 and 1,401.61

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Solution

The fourth proportional to 3,453.61, 5,182.58 and 1,401.61 is: 2,103.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.61 : 5,182.58 = 1,401.61 : x
  2. Step 2: Convert to fraction form
    3,453.61/5,182.58 = 1,401.61/x
  3. Step 3: Cross multiply
    3,453.61x = 5,182.58 × 1,401.61
  4. Step 4: Simplify right side
    3,453.61x = 7,263,948.95
  5. Step 5: Solve for x
    x = 7,263,948.95/3,453.61
  6. Step 6: Final answer
    x = 2,103.29

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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.