Home / 1,879.83-2,591.45-1,318.56

Finding the Fourth Proportional to 1,879.83, 2,591.45 and 1,318.56

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Solution

The fourth proportional to 1,879.83, 2,591.45 and 1,318.56 is: 1,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.83 : 2,591.45 = 1,318.56 : x
  2. Step 2: Convert to fraction form
    1,879.83/2,591.45 = 1,318.56/x
  3. Step 3: Cross multiply
    1,879.83x = 2,591.45 × 1,318.56
  4. Step 4: Simplify right side
    1,879.83x = 3,416,970.95
  5. Step 5: Solve for x
    x = 3,416,970.95/1,879.83
  6. Step 6: Final answer
    x = 1,817.70

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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.