Home / 3,104.40-4,284.15-1,778.43

Finding the Fourth Proportional to 3,104.40, 4,284.15 and 1,778.43

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Solution

The fourth proportional to 3,104.40, 4,284.15 and 1,778.43 is: 2,454.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.40 : 4,284.15 = 1,778.43 : x
  2. Step 2: Convert to fraction form
    3,104.40/4,284.15 = 1,778.43/x
  3. Step 3: Cross multiply
    3,104.40x = 4,284.15 × 1,778.43
  4. Step 4: Simplify right side
    3,104.40x = 7,619,060.88
  5. Step 5: Solve for x
    x = 7,619,060.88/3,104.40
  6. Step 6: Final answer
    x = 2,454.28

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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.