Home / 2,160.25-3,237.64-1,379.95

Finding the Fourth Proportional to 2,160.25, 3,237.64 and 1,379.95

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Solution

The fourth proportional to 2,160.25, 3,237.64 and 1,379.95 is: 2,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.25 : 3,237.64 = 1,379.95 : x
  2. Step 2: Convert to fraction form
    2,160.25/3,237.64 = 1,379.95/x
  3. Step 3: Cross multiply
    2,160.25x = 3,237.64 × 1,379.95
  4. Step 4: Simplify right side
    2,160.25x = 4,467,769.77
  5. Step 5: Solve for x
    x = 4,467,769.77/2,160.25
  6. Step 6: Final answer
    x = 2,068.17

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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.