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Finding the Fourth Proportional to 3,401.66, 5,105.23 and 1,322.63

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Solution

The fourth proportional to 3,401.66, 5,105.23 and 1,322.63 is: 1,985.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.66 : 5,105.23 = 1,322.63 : x
  2. Step 2: Convert to fraction form
    3,401.66/5,105.23 = 1,322.63/x
  3. Step 3: Cross multiply
    3,401.66x = 5,105.23 × 1,322.63
  4. Step 4: Simplify right side
    3,401.66x = 6,752,320.67
  5. Step 5: Solve for x
    x = 6,752,320.67/3,401.66
  6. Step 6: Final answer
    x = 1,985.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.