Home / 2,178.70-3,265.52-1,083.76

Finding the Fourth Proportional to 2,178.70, 3,265.52 and 1,083.76

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Solution

The fourth proportional to 2,178.70, 3,265.52 and 1,083.76 is: 1,624.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.70 : 3,265.52 = 1,083.76 : x
  2. Step 2: Convert to fraction form
    2,178.70/3,265.52 = 1,083.76/x
  3. Step 3: Cross multiply
    2,178.70x = 3,265.52 × 1,083.76
  4. Step 4: Simplify right side
    2,178.70x = 3,539,039.96
  5. Step 5: Solve for x
    x = 3,539,039.96/2,178.70
  6. Step 6: Final answer
    x = 1,624.38

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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.