Home / 2,764.40-4,146.60-2,553.20

Finding the Fourth Proportional to 2,764.40, 4,146.60 and 2,553.20

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Solution

The fourth proportional to 2,764.40, 4,146.60 and 2,553.20 is: 3,829.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.40 : 4,146.60 = 2,553.20 : x
  2. Step 2: Convert to fraction form
    2,764.40/4,146.60 = 2,553.20/x
  3. Step 3: Cross multiply
    2,764.40x = 4,146.60 × 2,553.20
  4. Step 4: Simplify right side
    2,764.40x = 10,587,099.12
  5. Step 5: Solve for x
    x = 10,587,099.12/2,764.40
  6. Step 6: Final answer
    x = 3,829.80

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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.