Home / 3,218.74-4,442.61-1,821.94

Finding the Fourth Proportional to 3,218.74, 4,442.61 and 1,821.94

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Solution

The fourth proportional to 3,218.74, 4,442.61 and 1,821.94 is: 2,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.74 : 4,442.61 = 1,821.94 : x
  2. Step 2: Convert to fraction form
    3,218.74/4,442.61 = 1,821.94/x
  3. Step 3: Cross multiply
    3,218.74x = 4,442.61 × 1,821.94
  4. Step 4: Simplify right side
    3,218.74x = 8,094,168.86
  5. Step 5: Solve for x
    x = 8,094,168.86/3,218.74
  6. Step 6: Final answer
    x = 2,514.70

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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.