Home / 3,980.16-5,494.56-2,727.84

Finding the Fourth Proportional to 3,980.16, 5,494.56 and 2,727.84

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Solution

The fourth proportional to 3,980.16, 5,494.56 and 2,727.84 is: 3,765.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.16 : 5,494.56 = 2,727.84 : x
  2. Step 2: Convert to fraction form
    3,980.16/5,494.56 = 2,727.84/x
  3. Step 3: Cross multiply
    3,980.16x = 5,494.56 × 2,727.84
  4. Step 4: Simplify right side
    3,980.16x = 14,988,280.55
  5. Step 5: Solve for x
    x = 14,988,280.55/3,980.16
  6. Step 6: Final answer
    x = 3,765.75

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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.