Home / 3,867.91-5,337.72-2,099.51

Finding the Fourth Proportional to 3,867.91, 5,337.72 and 2,099.51

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Solution

The fourth proportional to 3,867.91, 5,337.72 and 2,099.51 is: 2,897.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.91 : 5,337.72 = 2,099.51 : x
  2. Step 2: Convert to fraction form
    3,867.91/5,337.72 = 2,099.51/x
  3. Step 3: Cross multiply
    3,867.91x = 5,337.72 × 2,099.51
  4. Step 4: Simplify right side
    3,867.91x = 11,206,609.86
  5. Step 5: Solve for x
    x = 11,206,609.86/3,867.91
  6. Step 6: Final answer
    x = 2,897.33

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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.