Home / 3,885.87-5,362.71-2,207.01

Finding the Fourth Proportional to 3,885.87, 5,362.71 and 2,207.01

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Solution

The fourth proportional to 3,885.87, 5,362.71 and 2,207.01 is: 3,045.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.87 : 5,362.71 = 2,207.01 : x
  2. Step 2: Convert to fraction form
    3,885.87/5,362.71 = 2,207.01/x
  3. Step 3: Cross multiply
    3,885.87x = 5,362.71 × 2,207.01
  4. Step 4: Simplify right side
    3,885.87x = 11,835,554.60
  5. Step 5: Solve for x
    x = 11,835,554.60/3,885.87
  6. Step 6: Final answer
    x = 3,045.79

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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.