Home / 2,422.55-3,636.09-1,190.84

Finding the Fourth Proportional to 2,422.55, 3,636.09 and 1,190.84

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Solution

The fourth proportional to 2,422.55, 3,636.09 and 1,190.84 is: 1,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.55 : 3,636.09 = 1,190.84 : x
  2. Step 2: Convert to fraction form
    2,422.55/3,636.09 = 1,190.84/x
  3. Step 3: Cross multiply
    2,422.55x = 3,636.09 × 1,190.84
  4. Step 4: Simplify right side
    2,422.55x = 4,330,013.48
  5. Step 5: Solve for x
    x = 4,330,013.48/2,422.55
  6. Step 6: Final answer
    x = 1,787.38

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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.