Home / 3,616.25-5,424.77-1,425.13

Finding the Fourth Proportional to 3,616.25, 5,424.77 and 1,425.13

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Solution

The fourth proportional to 3,616.25, 5,424.77 and 1,425.13 is: 2,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.25 : 5,424.77 = 1,425.13 : x
  2. Step 2: Convert to fraction form
    3,616.25/5,424.77 = 1,425.13/x
  3. Step 3: Cross multiply
    3,616.25x = 5,424.77 × 1,425.13
  4. Step 4: Simplify right side
    3,616.25x = 7,730,992.47
  5. Step 5: Solve for x
    x = 7,730,992.47/3,616.25
  6. Step 6: Final answer
    x = 2,137.85

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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.