Home / 2,882.25-3,977.51-1,640.25

Finding the Fourth Proportional to 2,882.25, 3,977.51 and 1,640.25

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Solution

The fourth proportional to 2,882.25, 3,977.51 and 1,640.25 is: 2,263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.25 : 3,977.51 = 1,640.25 : x
  2. Step 2: Convert to fraction form
    2,882.25/3,977.51 = 1,640.25/x
  3. Step 3: Cross multiply
    2,882.25x = 3,977.51 × 1,640.25
  4. Step 4: Simplify right side
    2,882.25x = 6,524,102.58
  5. Step 5: Solve for x
    x = 6,524,102.58/2,882.25
  6. Step 6: Final answer
    x = 2,263.55

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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.