Home / 3,092.40-4,260.96-2,840.88

Finding the Fourth Proportional to 3,092.40, 4,260.96 and 2,840.88

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Solution

The fourth proportional to 3,092.40, 4,260.96 and 2,840.88 is: 3,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,092.40 : 4,260.96 = 2,840.88 : x
  2. Step 2: Convert to fraction form
    3,092.40/4,260.96 = 2,840.88/x
  3. Step 3: Cross multiply
    3,092.40x = 4,260.96 × 2,840.88
  4. Step 4: Simplify right side
    3,092.40x = 12,104,876.04
  5. Step 5: Solve for x
    x = 12,104,876.04/3,092.40
  6. Step 6: Final answer
    x = 3,914.40

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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.