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Finding the Fourth Proportional to 3,497.34, 5,247.84 and 1,418.88

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Solution

The fourth proportional to 3,497.34, 5,247.84 and 1,418.88 is: 2,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,497.34 : 5,247.84 = 1,418.88 : x
  2. Step 2: Convert to fraction form
    3,497.34/5,247.84 = 1,418.88/x
  3. Step 3: Cross multiply
    3,497.34x = 5,247.84 × 1,418.88
  4. Step 4: Simplify right side
    3,497.34x = 7,446,055.22
  5. Step 5: Solve for x
    x = 7,446,055.22/3,497.34
  6. Step 6: Final answer
    x = 2,129.06

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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.