Home / 1,447.37-2,171.06-351.74

Finding the Fourth Proportional to 1,447.37, 2,171.06 and 351.74

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Solution

The fourth proportional to 1,447.37, 2,171.06 and 351.74 is: 527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.37 : 2,171.06 = 351.74 : x
  2. Step 2: Convert to fraction form
    1,447.37/2,171.06 = 351.74/x
  3. Step 3: Cross multiply
    1,447.37x = 2,171.06 × 351.74
  4. Step 4: Simplify right side
    1,447.37x = 763,636.03
  5. Step 5: Solve for x
    x = 763,636.03/1,447.37
  6. Step 6: Final answer
    x = 527.60

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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.