Home / 1,879.24-2,590.60-1,318.02

Finding the Fourth Proportional to 1,879.24, 2,590.60 and 1,318.02

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Solution

The fourth proportional to 1,879.24, 2,590.60 and 1,318.02 is: 1,816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.24 : 2,590.60 = 1,318.02 : x
  2. Step 2: Convert to fraction form
    1,879.24/2,590.60 = 1,318.02/x
  3. Step 3: Cross multiply
    1,879.24x = 2,590.60 × 1,318.02
  4. Step 4: Simplify right side
    1,879.24x = 3,414,462.61
  5. Step 5: Solve for x
    x = 3,414,462.61/1,879.24
  6. Step 6: Final answer
    x = 1,816.94

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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.