Home / 3,688.83-5,087.98-2,195.59

Finding the Fourth Proportional to 3,688.83, 5,087.98 and 2,195.59

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Solution

The fourth proportional to 3,688.83, 5,087.98 and 2,195.59 is: 3,028.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.83 : 5,087.98 = 2,195.59 : x
  2. Step 2: Convert to fraction form
    3,688.83/5,087.98 = 2,195.59/x
  3. Step 3: Cross multiply
    3,688.83x = 5,087.98 × 2,195.59
  4. Step 4: Simplify right side
    3,688.83x = 11,171,118.01
  5. Step 5: Solve for x
    x = 11,171,118.01/3,688.83
  6. Step 6: Final answer
    x = 3,028.36

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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.