Home / 1,122.18-1,682.45-473.37

Finding the Fourth Proportional to 1,122.18, 1,682.45 and 473.37

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Solution

The fourth proportional to 1,122.18, 1,682.45 and 473.37 is: 709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122.18 : 1,682.45 = 473.37 : x
  2. Step 2: Convert to fraction form
    1,122.18/1,682.45 = 473.37/x
  3. Step 3: Cross multiply
    1,122.18x = 1,682.45 × 473.37
  4. Step 4: Simplify right side
    1,122.18x = 796,421.36
  5. Step 5: Solve for x
    x = 796,421.36/1,122.18
  6. Step 6: Final answer
    x = 709.71

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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.