Home / 3,615.58-5,426.44-2,578.12

Finding the Fourth Proportional to 3,615.58, 5,426.44 and 2,578.12

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Solution

The fourth proportional to 3,615.58, 5,426.44 and 2,578.12 is: 3,869.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.58 : 5,426.44 = 2,578.12 : x
  2. Step 2: Convert to fraction form
    3,615.58/5,426.44 = 2,578.12/x
  3. Step 3: Cross multiply
    3,615.58x = 5,426.44 × 2,578.12
  4. Step 4: Simplify right side
    3,615.58x = 13,990,009.93
  5. Step 5: Solve for x
    x = 13,990,009.93/3,615.58
  6. Step 6: Final answer
    x = 3,869.37

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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.