Home / 4,080.80-5,631.36-2,682.56

Finding the Fourth Proportional to 4,080.80, 5,631.36 and 2,682.56

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Solution

The fourth proportional to 4,080.80, 5,631.36 and 2,682.56 is: 3,701.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.80 : 5,631.36 = 2,682.56 : x
  2. Step 2: Convert to fraction form
    4,080.80/5,631.36 = 2,682.56/x
  3. Step 3: Cross multiply
    4,080.80x = 5,631.36 × 2,682.56
  4. Step 4: Simplify right side
    4,080.80x = 15,106,461.08
  5. Step 5: Solve for x
    x = 15,106,461.08/4,080.80
  6. Step 6: Final answer
    x = 3,701.84

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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.