Home / 3,755.40-5,182.13-2,076.80

Finding the Fourth Proportional to 3,755.40, 5,182.13 and 2,076.80

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Solution

The fourth proportional to 3,755.40, 5,182.13 and 2,076.80 is: 2,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.40 : 5,182.13 = 2,076.80 : x
  2. Step 2: Convert to fraction form
    3,755.40/5,182.13 = 2,076.80/x
  3. Step 3: Cross multiply
    3,755.40x = 5,182.13 × 2,076.80
  4. Step 4: Simplify right side
    3,755.40x = 10,762,237.20
  5. Step 5: Solve for x
    x = 10,762,237.20/3,755.40
  6. Step 6: Final answer
    x = 2,865.80

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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.