Home / 2,180.07-3,270.24-1,191.60

Finding the Fourth Proportional to 2,180.07, 3,270.24 and 1,191.60

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Solution

The fourth proportional to 2,180.07, 3,270.24 and 1,191.60 is: 1,787.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.07 : 3,270.24 = 1,191.60 : x
  2. Step 2: Convert to fraction form
    2,180.07/3,270.24 = 1,191.60/x
  3. Step 3: Cross multiply
    2,180.07x = 3,270.24 × 1,191.60
  4. Step 4: Simplify right side
    2,180.07x = 3,896,817.98
  5. Step 5: Solve for x
    x = 3,896,817.98/2,180.07
  6. Step 6: Final answer
    x = 1,787.47

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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.