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Finding the Fourth Proportional to 3,409.44, 5,103.21 and 1,763.76

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Solution

The fourth proportional to 3,409.44, 5,103.21 and 1,763.76 is: 2,639.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.44 : 5,103.21 = 1,763.76 : x
  2. Step 2: Convert to fraction form
    3,409.44/5,103.21 = 1,763.76/x
  3. Step 3: Cross multiply
    3,409.44x = 5,103.21 × 1,763.76
  4. Step 4: Simplify right side
    3,409.44x = 9,000,837.67
  5. Step 5: Solve for x
    x = 9,000,837.67/3,409.44
  6. Step 6: Final answer
    x = 2,639.98

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1.5x scale

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.