Home / 2,282.70-3,151.80-1,399.68

Finding the Fourth Proportional to 2,282.70, 3,151.80 and 1,399.68

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Solution

The fourth proportional to 2,282.70, 3,151.80 and 1,399.68 is: 1,932.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,282.70 : 3,151.80 = 1,399.68 : x
  2. Step 2: Convert to fraction form
    2,282.70/3,151.80 = 1,399.68/x
  3. Step 3: Cross multiply
    2,282.70x = 3,151.80 × 1,399.68
  4. Step 4: Simplify right side
    2,282.70x = 4,411,511.42
  5. Step 5: Solve for x
    x = 4,411,511.42/2,282.70
  6. Step 6: Final answer
    x = 1,932.58

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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.