Home / 2,630.64-3,945.96-1,092.72

Finding the Fourth Proportional to 2,630.64, 3,945.96 and 1,092.72

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Solution

The fourth proportional to 2,630.64, 3,945.96 and 1,092.72 is: 1,639.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.64 : 3,945.96 = 1,092.72 : x
  2. Step 2: Convert to fraction form
    2,630.64/3,945.96 = 1,092.72/x
  3. Step 3: Cross multiply
    2,630.64x = 3,945.96 × 1,092.72
  4. Step 4: Simplify right side
    2,630.64x = 4,311,829.41
  5. Step 5: Solve for x
    x = 4,311,829.41/2,630.64
  6. Step 6: Final answer
    x = 1,639.08

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.