Home / 4,080.45-5,631.35-2,312.49

Finding the Fourth Proportional to 4,080.45, 5,631.35 and 2,312.49

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Solution

The fourth proportional to 4,080.45, 5,631.35 and 2,312.49 is: 3,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.45 : 5,631.35 = 2,312.49 : x
  2. Step 2: Convert to fraction form
    4,080.45/5,631.35 = 2,312.49/x
  3. Step 3: Cross multiply
    4,080.45x = 5,631.35 × 2,312.49
  4. Step 4: Simplify right side
    4,080.45x = 13,022,440.56
  5. Step 5: Solve for x
    x = 13,022,440.56/4,080.45
  6. Step 6: Final answer
    x = 3,191.42

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1.5x scale

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.