Home / 2,180.94-3,010.68-1,435.29

Finding the Fourth Proportional to 2,180.94, 3,010.68 and 1,435.29

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Solution

The fourth proportional to 2,180.94, 3,010.68 and 1,435.29 is: 1,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.94 : 3,010.68 = 1,435.29 : x
  2. Step 2: Convert to fraction form
    2,180.94/3,010.68 = 1,435.29/x
  3. Step 3: Cross multiply
    2,180.94x = 3,010.68 × 1,435.29
  4. Step 4: Simplify right side
    2,180.94x = 4,321,198.90
  5. Step 5: Solve for x
    x = 4,321,198.90/2,180.94
  6. Step 6: Final answer
    x = 1,981.35

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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.