Home / 3,755.67-5,182.78-2,077.20

Finding the Fourth Proportional to 3,755.67, 5,182.78 and 2,077.20

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Solution

The fourth proportional to 3,755.67, 5,182.78 and 2,077.20 is: 2,866.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.67 : 5,182.78 = 2,077.20 : x
  2. Step 2: Convert to fraction form
    3,755.67/5,182.78 = 2,077.20/x
  3. Step 3: Cross multiply
    3,755.67x = 5,182.78 × 2,077.20
  4. Step 4: Simplify right side
    3,755.67x = 10,765,670.62
  5. Step 5: Solve for x
    x = 10,765,670.62/3,755.67
  6. Step 6: Final answer
    x = 2,866.51

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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.