Home / 3,847.05-5,305.91-2,784.97

Finding the Fourth Proportional to 3,847.05, 5,305.91 and 2,784.97

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Solution

The fourth proportional to 3,847.05, 5,305.91 and 2,784.97 is: 3,841.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.05 : 5,305.91 = 2,784.97 : x
  2. Step 2: Convert to fraction form
    3,847.05/5,305.91 = 2,784.97/x
  3. Step 3: Cross multiply
    3,847.05x = 5,305.91 × 2,784.97
  4. Step 4: Simplify right side
    3,847.05x = 14,776,800.17
  5. Step 5: Solve for x
    x = 14,776,800.17/3,847.05
  6. Step 6: Final answer
    x = 3,841.07

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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.