Home / 3,180.38-4,388.92-1,783.13

Finding the Fourth Proportional to 3,180.38, 4,388.92 and 1,783.13

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Solution

The fourth proportional to 3,180.38, 4,388.92 and 1,783.13 is: 2,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.38 : 4,388.92 = 1,783.13 : x
  2. Step 2: Convert to fraction form
    3,180.38/4,388.92 = 1,783.13/x
  3. Step 3: Cross multiply
    3,180.38x = 4,388.92 × 1,783.13
  4. Step 4: Simplify right side
    3,180.38x = 7,825,988.52
  5. Step 5: Solve for x
    x = 7,825,988.52/3,180.38
  6. Step 6: Final answer
    x = 2,460.71

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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.