Home / 3,218.89-4,445.13-2,042.77

Finding the Fourth Proportional to 3,218.89, 4,445.13 and 2,042.77

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Solution

The fourth proportional to 3,218.89, 4,445.13 and 2,042.77 is: 2,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.89 : 4,445.13 = 2,042.77 : x
  2. Step 2: Convert to fraction form
    3,218.89/4,445.13 = 2,042.77/x
  3. Step 3: Cross multiply
    3,218.89x = 4,445.13 × 2,042.77
  4. Step 4: Simplify right side
    3,218.89x = 9,080,378.21
  5. Step 5: Solve for x
    x = 9,080,378.21/3,218.89
  6. Step 6: Final answer
    x = 2,820.97

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1.5x scale

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.