Home / 1,941.87-2,668.75-1,818.86

Finding the Fourth Proportional to 1,941.87, 2,668.75 and 1,818.86

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Solution

The fourth proportional to 1,941.87, 2,668.75 and 1,818.86 is: 2,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.87 : 2,668.75 = 1,818.86 : x
  2. Step 2: Convert to fraction form
    1,941.87/2,668.75 = 1,818.86/x
  3. Step 3: Cross multiply
    1,941.87x = 2,668.75 × 1,818.86
  4. Step 4: Simplify right side
    1,941.87x = 4,854,064.73
  5. Step 5: Solve for x
    x = 4,854,064.73/1,941.87
  6. Step 6: Final answer
    x = 2,499.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.