Home / 2,825.16-3,899.19-1,940.24

Finding the Fourth Proportional to 2,825.16, 3,899.19 and 1,940.24

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Solution

The fourth proportional to 2,825.16, 3,899.19 and 1,940.24 is: 2,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.16 : 3,899.19 = 1,940.24 : x
  2. Step 2: Convert to fraction form
    2,825.16/3,899.19 = 1,940.24/x
  3. Step 3: Cross multiply
    2,825.16x = 3,899.19 × 1,940.24
  4. Step 4: Simplify right side
    2,825.16x = 7,565,344.91
  5. Step 5: Solve for x
    x = 7,565,344.91/2,825.16
  6. Step 6: Final answer
    x = 2,677.85

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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.