Home / 1,447.20-2,171.21-473.27

Finding the Fourth Proportional to 1,447.20, 2,171.21 and 473.27

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Solution

The fourth proportional to 1,447.20, 2,171.21 and 473.27 is: 710.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.20 : 2,171.21 = 473.27 : x
  2. Step 2: Convert to fraction form
    1,447.20/2,171.21 = 473.27/x
  3. Step 3: Cross multiply
    1,447.20x = 2,171.21 × 473.27
  4. Step 4: Simplify right side
    1,447.20x = 1,027,555.33
  5. Step 5: Solve for x
    x = 1,027,555.33/1,447.20
  6. Step 6: Final answer
    x = 710.03

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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.