Home / 4,980.46-6,872.78-2,742.53

Finding the Fourth Proportional to 4,980.46, 6,872.78 and 2,742.53

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Solution

The fourth proportional to 4,980.46, 6,872.78 and 2,742.53 is: 3,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.46 : 6,872.78 = 2,742.53 : x
  2. Step 2: Convert to fraction form
    4,980.46/6,872.78 = 2,742.53/x
  3. Step 3: Cross multiply
    4,980.46x = 6,872.78 × 2,742.53
  4. Step 4: Simplify right side
    4,980.46x = 18,848,764.11
  5. Step 5: Solve for x
    x = 18,848,764.11/4,980.46
  6. Step 6: Final answer
    x = 3,784.55

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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.