Home / 2,580.05-3,868.22-2,087.06

Finding the Fourth Proportional to 2,580.05, 3,868.22 and 2,087.06

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Solution

The fourth proportional to 2,580.05, 3,868.22 and 2,087.06 is: 3,129.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.05 : 3,868.22 = 2,087.06 : x
  2. Step 2: Convert to fraction form
    2,580.05/3,868.22 = 2,087.06/x
  3. Step 3: Cross multiply
    2,580.05x = 3,868.22 × 2,087.06
  4. Step 4: Simplify right side
    2,580.05x = 8,073,177.46
  5. Step 5: Solve for x
    x = 8,073,177.46/2,580.05
  6. Step 6: Final answer
    x = 3,129.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.