Home / 1,628.14-2,246.12-1,131.98

Finding the Fourth Proportional to 1,628.14, 2,246.12 and 1,131.98

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Solution

The fourth proportional to 1,628.14, 2,246.12 and 1,131.98 is: 1,561.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.14 : 2,246.12 = 1,131.98 : x
  2. Step 2: Convert to fraction form
    1,628.14/2,246.12 = 1,131.98/x
  3. Step 3: Cross multiply
    1,628.14x = 2,246.12 × 1,131.98
  4. Step 4: Simplify right side
    1,628.14x = 2,542,562.92
  5. Step 5: Solve for x
    x = 2,542,562.92/1,628.14
  6. Step 6: Final answer
    x = 1,561.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.