Home / 3,867.58-5,337.29-2,099.20

Finding the Fourth Proportional to 3,867.58, 5,337.29 and 2,099.20

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Solution

The fourth proportional to 3,867.58, 5,337.29 and 2,099.20 is: 2,896.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.58 : 5,337.29 = 2,099.20 : x
  2. Step 2: Convert to fraction form
    3,867.58/5,337.29 = 2,099.20/x
  3. Step 3: Cross multiply
    3,867.58x = 5,337.29 × 2,099.20
  4. Step 4: Simplify right side
    3,867.58x = 11,204,001.99
  5. Step 5: Solve for x
    x = 11,204,001.99/3,867.58
  6. Step 6: Final answer
    x = 2,896.91

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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.