Home / 3,034.73-4,189.70-1,988.62

Finding the Fourth Proportional to 3,034.73, 4,189.70 and 1,988.62

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Solution

The fourth proportional to 3,034.73, 4,189.70 and 1,988.62 is: 2,745.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,034.73 : 4,189.70 = 1,988.62 : x
  2. Step 2: Convert to fraction form
    3,034.73/4,189.70 = 1,988.62/x
  3. Step 3: Cross multiply
    3,034.73x = 4,189.70 × 1,988.62
  4. Step 4: Simplify right side
    3,034.73x = 8,331,721.21
  5. Step 5: Solve for x
    x = 8,331,721.21/3,034.73
  6. Step 6: Final answer
    x = 2,745.46

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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.