Home / 3,042.60-4,198.77-1,645.35

Finding the Fourth Proportional to 3,042.60, 4,198.77 and 1,645.35

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Solution

The fourth proportional to 3,042.60, 4,198.77 and 1,645.35 is: 2,270.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.60 : 4,198.77 = 1,645.35 : x
  2. Step 2: Convert to fraction form
    3,042.60/4,198.77 = 1,645.35/x
  3. Step 3: Cross multiply
    3,042.60x = 4,198.77 × 1,645.35
  4. Step 4: Simplify right side
    3,042.60x = 6,908,446.22
  5. Step 5: Solve for x
    x = 6,908,446.22/3,042.60
  6. Step 6: Final answer
    x = 2,270.57

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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.