Home / 3,042.53-4,198.70-1,645.28

Finding the Fourth Proportional to 3,042.53, 4,198.70 and 1,645.28

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Solution

The fourth proportional to 3,042.53, 4,198.70 and 1,645.28 is: 2,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.53 : 4,198.70 = 1,645.28 : x
  2. Step 2: Convert to fraction form
    3,042.53/4,198.70 = 1,645.28/x
  3. Step 3: Cross multiply
    3,042.53x = 4,198.70 × 1,645.28
  4. Step 4: Simplify right side
    3,042.53x = 6,908,037.14
  5. Step 5: Solve for x
    x = 6,908,037.14/3,042.53
  6. Step 6: Final answer
    x = 2,270.49

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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.