Home / 4,453.92-6,139.79-3,821.40

Finding the Fourth Proportional to 4,453.92, 6,139.79 and 3,821.40

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Solution

The fourth proportional to 4,453.92, 6,139.79 and 3,821.40 is: 5,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,453.92 : 6,139.79 = 3,821.40 : x
  2. Step 2: Convert to fraction form
    4,453.92/6,139.79 = 3,821.40/x
  3. Step 3: Cross multiply
    4,453.92x = 6,139.79 × 3,821.40
  4. Step 4: Simplify right side
    4,453.92x = 23,462,593.51
  5. Step 5: Solve for x
    x = 23,462,593.51/4,453.92
  6. Step 6: Final answer
    x = 5,267.85

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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.