Home / 4,080.44-5,631.20-2,312.08

Finding the Fourth Proportional to 4,080.44, 5,631.20 and 2,312.08

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Solution

The fourth proportional to 4,080.44, 5,631.20 and 2,312.08 is: 3,190.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.44 : 5,631.20 = 2,312.08 : x
  2. Step 2: Convert to fraction form
    4,080.44/5,631.20 = 2,312.08/x
  3. Step 3: Cross multiply
    4,080.44x = 5,631.20 × 2,312.08
  4. Step 4: Simplify right side
    4,080.44x = 13,019,784.90
  5. Step 5: Solve for x
    x = 13,019,784.90/4,080.44
  6. Step 6: Final answer
    x = 3,190.78

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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.