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Finding the Fourth Proportional to 3,644.88, 5,462.13 and 1,665.64

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Solution

The fourth proportional to 3,644.88, 5,462.13 and 1,665.64 is: 2,496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.88 : 5,462.13 = 1,665.64 : x
  2. Step 2: Convert to fraction form
    3,644.88/5,462.13 = 1,665.64/x
  3. Step 3: Cross multiply
    3,644.88x = 5,462.13 × 1,665.64
  4. Step 4: Simplify right side
    3,644.88x = 9,097,955.29
  5. Step 5: Solve for x
    x = 9,097,955.29/3,644.88
  6. Step 6: Final answer
    x = 2,496.09

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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.