Home / 3,840.92-5,300.99-2,162.66

Finding the Fourth Proportional to 3,840.92, 5,300.99 and 2,162.66

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Solution

The fourth proportional to 3,840.92, 5,300.99 and 2,162.66 is: 2,984.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.92 : 5,300.99 = 2,162.66 : x
  2. Step 2: Convert to fraction form
    3,840.92/5,300.99 = 2,162.66/x
  3. Step 3: Cross multiply
    3,840.92x = 5,300.99 × 2,162.66
  4. Step 4: Simplify right side
    3,840.92x = 11,464,228.22
  5. Step 5: Solve for x
    x = 11,464,228.22/3,840.92
  6. Step 6: Final answer
    x = 2,984.76

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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.