Home / 2,755.28-3,797.16-1,871.12

Finding the Fourth Proportional to 2,755.28, 3,797.16 and 1,871.12

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Solution

The fourth proportional to 2,755.28, 3,797.16 and 1,871.12 is: 2,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.28 : 3,797.16 = 1,871.12 : x
  2. Step 2: Convert to fraction form
    2,755.28/3,797.16 = 1,871.12/x
  3. Step 3: Cross multiply
    2,755.28x = 3,797.16 × 1,871.12
  4. Step 4: Simplify right side
    2,755.28x = 7,104,942.02
  5. Step 5: Solve for x
    x = 7,104,942.02/2,755.28
  6. Step 6: Final answer
    x = 2,578.66

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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.