Home / 3,680.14-5,520.75-1,340.32

Finding the Fourth Proportional to 3,680.14, 5,520.75 and 1,340.32

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Solution

The fourth proportional to 3,680.14, 5,520.75 and 1,340.32 is: 2,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.14 : 5,520.75 = 1,340.32 : x
  2. Step 2: Convert to fraction form
    3,680.14/5,520.75 = 1,340.32/x
  3. Step 3: Cross multiply
    3,680.14x = 5,520.75 × 1,340.32
  4. Step 4: Simplify right side
    3,680.14x = 7,399,571.64
  5. Step 5: Solve for x
    x = 7,399,571.64/3,680.14
  6. Step 6: Final answer
    x = 2,010.68

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1.5x scale

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.