Home / 3,086.88-4,632.80-1,140.64

Finding the Fourth Proportional to 3,086.88, 4,632.80 and 1,140.64

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Solution

The fourth proportional to 3,086.88, 4,632.80 and 1,140.64 is: 1,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.88 : 4,632.80 = 1,140.64 : x
  2. Step 2: Convert to fraction form
    3,086.88/4,632.80 = 1,140.64/x
  3. Step 3: Cross multiply
    3,086.88x = 4,632.80 × 1,140.64
  4. Step 4: Simplify right side
    3,086.88x = 5,284,356.99
  5. Step 5: Solve for x
    x = 5,284,356.99/3,086.88
  6. Step 6: Final answer
    x = 1,711.88

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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.