Home / 3,086.40-4,629.84-1,356.24

Finding the Fourth Proportional to 3,086.40, 4,629.84 and 1,356.24

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Solution

The fourth proportional to 3,086.40, 4,629.84 and 1,356.24 is: 2,034.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.40 : 4,629.84 = 1,356.24 : x
  2. Step 2: Convert to fraction form
    3,086.40/4,629.84 = 1,356.24/x
  3. Step 3: Cross multiply
    3,086.40x = 4,629.84 × 1,356.24
  4. Step 4: Simplify right side
    3,086.40x = 6,279,174.20
  5. Step 5: Solve for x
    x = 6,279,174.20/3,086.40
  6. Step 6: Final answer
    x = 2,034.47

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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.