Home / 4,243.78-6,331.64-3,620.35

Finding the Fourth Proportional to 4,243.78, 6,331.64 and 3,620.35

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Solution

The fourth proportional to 4,243.78, 6,331.64 and 3,620.35 is: 5,401.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.78 : 6,331.64 = 3,620.35 : x
  2. Step 2: Convert to fraction form
    4,243.78/6,331.64 = 3,620.35/x
  3. Step 3: Cross multiply
    4,243.78x = 6,331.64 × 3,620.35
  4. Step 4: Simplify right side
    4,243.78x = 22,922,752.87
  5. Step 5: Solve for x
    x = 22,922,752.87/4,243.78
  6. Step 6: Final answer
    x = 5,401.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.