Home / 2,548.60-3,822.90-2,111.20

Finding the Fourth Proportional to 2,548.60, 3,822.90 and 2,111.20

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Solution

The fourth proportional to 2,548.60, 3,822.90 and 2,111.20 is: 3,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.60 : 3,822.90 = 2,111.20 : x
  2. Step 2: Convert to fraction form
    2,548.60/3,822.90 = 2,111.20/x
  3. Step 3: Cross multiply
    2,548.60x = 3,822.90 × 2,111.20
  4. Step 4: Simplify right side
    2,548.60x = 8,070,906.48
  5. Step 5: Solve for x
    x = 8,070,906.48/2,548.60
  6. Step 6: Final answer
    x = 3,166.80

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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.