Home / 5,145.90-7,713.65-2,028.11

Finding the Fourth Proportional to 5,145.90, 7,713.65 and 2,028.11

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Solution

The fourth proportional to 5,145.90, 7,713.65 and 2,028.11 is: 3,040.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.90 : 7,713.65 = 2,028.11 : x
  2. Step 2: Convert to fraction form
    5,145.90/7,713.65 = 2,028.11/x
  3. Step 3: Cross multiply
    5,145.90x = 7,713.65 × 2,028.11
  4. Step 4: Simplify right side
    5,145.90x = 15,644,081.99
  5. Step 5: Solve for x
    x = 15,644,081.99/5,145.90
  6. Step 6: Final answer
    x = 3,040.11

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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.