Home / 2,874.26-3,969.43-2,475.13

Finding the Fourth Proportional to 2,874.26, 3,969.43 and 2,475.13

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Solution

The fourth proportional to 2,874.26, 3,969.43 and 2,475.13 is: 3,418.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.26 : 3,969.43 = 2,475.13 : x
  2. Step 2: Convert to fraction form
    2,874.26/3,969.43 = 2,475.13/x
  3. Step 3: Cross multiply
    2,874.26x = 3,969.43 × 2,475.13
  4. Step 4: Simplify right side
    2,874.26x = 9,824,855.28
  5. Step 5: Solve for x
    x = 9,824,855.28/2,874.26
  6. Step 6: Final answer
    x = 3,418.22

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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.