Home / 5,028.22-7,542.42-1,909.68

Finding the Fourth Proportional to 5,028.22, 7,542.42 and 1,909.68

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Solution

The fourth proportional to 5,028.22, 7,542.42 and 1,909.68 is: 2,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.22 : 7,542.42 = 1,909.68 : x
  2. Step 2: Convert to fraction form
    5,028.22/7,542.42 = 1,909.68/x
  3. Step 3: Cross multiply
    5,028.22x = 7,542.42 × 1,909.68
  4. Step 4: Simplify right side
    5,028.22x = 14,403,608.63
  5. Step 5: Solve for x
    x = 14,403,608.63/5,028.22
  6. Step 6: Final answer
    x = 2,864.55

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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.