Home / 4,084.20-5,635.50-2,405.28

Finding the Fourth Proportional to 4,084.20, 5,635.50 and 2,405.28

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Solution

The fourth proportional to 4,084.20, 5,635.50 and 2,405.28 is: 3,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,084.20 : 5,635.50 = 2,405.28 : x
  2. Step 2: Convert to fraction form
    4,084.20/5,635.50 = 2,405.28/x
  3. Step 3: Cross multiply
    4,084.20x = 5,635.50 × 2,405.28
  4. Step 4: Simplify right side
    4,084.20x = 13,554,955.44
  5. Step 5: Solve for x
    x = 13,554,955.44/4,084.20
  6. Step 6: Final answer
    x = 3,318.88

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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.