Home / 2,517.20-3,776.56-785.84

Finding the Fourth Proportional to 2,517.20, 3,776.56 and 785.84

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Solution

The fourth proportional to 2,517.20, 3,776.56 and 785.84 is: 1,179.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.20 : 3,776.56 = 785.84 : x
  2. Step 2: Convert to fraction form
    2,517.20/3,776.56 = 785.84/x
  3. Step 3: Cross multiply
    2,517.20x = 3,776.56 × 785.84
  4. Step 4: Simplify right side
    2,517.20x = 2,967,771.91
  5. Step 5: Solve for x
    x = 2,967,771.91/2,517.20
  6. Step 6: Final answer
    x = 1,179.00

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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.