Home / 7,145.95-10,719.35-2,763.43

Finding the Fourth Proportional to 7,145.95, 10,719.35 and 2,763.43

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Solution

The fourth proportional to 7,145.95, 10,719.35 and 2,763.43 is: 4,145.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.95 : 10,719.35 = 2,763.43 : x
  2. Step 2: Convert to fraction form
    7,145.95/10,719.35 = 2,763.43/x
  3. Step 3: Cross multiply
    7,145.95x = 10,719.35 × 2,763.43
  4. Step 4: Simplify right side
    7,145.95x = 29,622,173.37
  5. Step 5: Solve for x
    x = 29,622,173.37/7,145.95
  6. Step 6: Final answer
    x = 4,145.31

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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.