Home / 2,661.28-3,994.48-2,493.60

Finding the Fourth Proportional to 2,661.28, 3,994.48 and 2,493.60

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Solution

The fourth proportional to 2,661.28, 3,994.48 and 2,493.60 is: 3,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661.28 : 3,994.48 = 2,493.60 : x
  2. Step 2: Convert to fraction form
    2,661.28/3,994.48 = 2,493.60/x
  3. Step 3: Cross multiply
    2,661.28x = 3,994.48 × 2,493.60
  4. Step 4: Simplify right side
    2,661.28x = 9,960,635.33
  5. Step 5: Solve for x
    x = 9,960,635.33/2,661.28
  6. Step 6: Final answer
    x = 3,742.80

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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.