Home / 2,175.60-3,004.82-1,432.88

Finding the Fourth Proportional to 2,175.60, 3,004.82 and 1,432.88

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Solution

The fourth proportional to 2,175.60, 3,004.82 and 1,432.88 is: 1,979.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.60 : 3,004.82 = 1,432.88 : x
  2. Step 2: Convert to fraction form
    2,175.60/3,004.82 = 1,432.88/x
  3. Step 3: Cross multiply
    2,175.60x = 3,004.82 × 1,432.88
  4. Step 4: Simplify right side
    2,175.60x = 4,305,540.93
  5. Step 5: Solve for x
    x = 4,305,540.93/2,175.60
  6. Step 6: Final answer
    x = 1,979.01

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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.