Home / 7,146.96-10,719.36-2,763.87

Finding the Fourth Proportional to 7,146.96, 10,719.36 and 2,763.87

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Solution

The fourth proportional to 7,146.96, 10,719.36 and 2,763.87 is: 4,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.96 : 10,719.36 = 2,763.87 : x
  2. Step 2: Convert to fraction form
    7,146.96/10,719.36 = 2,763.87/x
  3. Step 3: Cross multiply
    7,146.96x = 10,719.36 × 2,763.87
  4. Step 4: Simplify right side
    7,146.96x = 29,626,917.52
  5. Step 5: Solve for x
    x = 29,626,917.52/7,146.96
  6. Step 6: Final answer
    x = 4,145.39

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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.