Home / 5,125.51-7,690.20-2,007.75

Finding the Fourth Proportional to 5,125.51, 7,690.20 and 2,007.75

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Solution

The fourth proportional to 5,125.51, 7,690.20 and 2,007.75 is: 3,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.51 : 7,690.20 = 2,007.75 : x
  2. Step 2: Convert to fraction form
    5,125.51/7,690.20 = 2,007.75/x
  3. Step 3: Cross multiply
    5,125.51x = 7,690.20 × 2,007.75
  4. Step 4: Simplify right side
    5,125.51x = 15,439,960.60
  5. Step 5: Solve for x
    x = 15,439,960.60/5,125.51
  6. Step 6: Final answer
    x = 3,012.38

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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.