Home / 2,329.70-3,214.89-1,281.76

Finding the Fourth Proportional to 2,329.70, 3,214.89 and 1,281.76

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Solution

The fourth proportional to 2,329.70, 3,214.89 and 1,281.76 is: 1,768.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.70 : 3,214.89 = 1,281.76 : x
  2. Step 2: Convert to fraction form
    2,329.70/3,214.89 = 1,281.76/x
  3. Step 3: Cross multiply
    2,329.70x = 3,214.89 × 1,281.76
  4. Step 4: Simplify right side
    2,329.70x = 4,120,709.37
  5. Step 5: Solve for x
    x = 4,120,709.37/2,329.70
  6. Step 6: Final answer
    x = 1,768.78

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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.