Home / 3,080.48-4,254.17-1,961.92

Finding the Fourth Proportional to 3,080.48, 4,254.17 and 1,961.92

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Solution

The fourth proportional to 3,080.48, 4,254.17 and 1,961.92 is: 2,709.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.48 : 4,254.17 = 1,961.92 : x
  2. Step 2: Convert to fraction form
    3,080.48/4,254.17 = 1,961.92/x
  3. Step 3: Cross multiply
    3,080.48x = 4,254.17 × 1,961.92
  4. Step 4: Simplify right side
    3,080.48x = 8,346,347.75
  5. Step 5: Solve for x
    x = 8,346,347.75/3,080.48
  6. Step 6: Final answer
    x = 2,709.43

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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.