Home / 4,880.78-7,322.88-2,540.66

Finding the Fourth Proportional to 4,880.78, 7,322.88 and 2,540.66

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Solution

The fourth proportional to 4,880.78, 7,322.88 and 2,540.66 is: 3,811.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.78 : 7,322.88 = 2,540.66 : x
  2. Step 2: Convert to fraction form
    4,880.78/7,322.88 = 2,540.66/x
  3. Step 3: Cross multiply
    4,880.78x = 7,322.88 × 2,540.66
  4. Step 4: Simplify right side
    4,880.78x = 18,604,948.30
  5. Step 5: Solve for x
    x = 18,604,948.30/4,880.78
  6. Step 6: Final answer
    x = 3,811.88

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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.