Home / 2,144.80-2,961.66-1,360.24

Finding the Fourth Proportional to 2,144.80, 2,961.66 and 1,360.24

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Solution

The fourth proportional to 2,144.80, 2,961.66 and 1,360.24 is: 1,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.80 : 2,961.66 = 1,360.24 : x
  2. Step 2: Convert to fraction form
    2,144.80/2,961.66 = 1,360.24/x
  3. Step 3: Cross multiply
    2,144.80x = 2,961.66 × 1,360.24
  4. Step 4: Simplify right side
    2,144.80x = 4,028,568.40
  5. Step 5: Solve for x
    x = 4,028,568.40/2,144.80
  6. Step 6: Final answer
    x = 1,878.30

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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.