Home / 4,218.80-5,824.31-2,540.61

Finding the Fourth Proportional to 4,218.80, 5,824.31 and 2,540.61

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Solution

The fourth proportional to 4,218.80, 5,824.31 and 2,540.61 is: 3,507.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.80 : 5,824.31 = 2,540.61 : x
  2. Step 2: Convert to fraction form
    4,218.80/5,824.31 = 2,540.61/x
  3. Step 3: Cross multiply
    4,218.80x = 5,824.31 × 2,540.61
  4. Step 4: Simplify right side
    4,218.80x = 14,797,287.53
  5. Step 5: Solve for x
    x = 14,797,287.53/4,218.80
  6. Step 6: Final answer
    x = 3,507.47

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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.