Home / 3,116.24-4,300.68-1,874

Finding the Fourth Proportional to 3,116.24, 4,300.68 and 1,874

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Solution

The fourth proportional to 3,116.24, 4,300.68 and 1,874 is: 2,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.24 : 4,300.68 = 1,874 : x
  2. Step 2: Convert to fraction form
    3,116.24/4,300.68 = 1,874/x
  3. Step 3: Cross multiply
    3,116.24x = 4,300.68 × 1,874
  4. Step 4: Simplify right side
    3,116.24x = 8,059,474.32
  5. Step 5: Solve for x
    x = 8,059,474.32/3,116.24
  6. Step 6: Final answer
    x = 2,586.28

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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.