Home / 7,152.06-10,720.14-2,765.88

Finding the Fourth Proportional to 7,152.06, 10,720.14 and 2,765.88

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Solution

The fourth proportional to 7,152.06, 10,720.14 and 2,765.88 is: 4,145.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.06 : 10,720.14 = 2,765.88 : x
  2. Step 2: Convert to fraction form
    7,152.06/10,720.14 = 2,765.88/x
  3. Step 3: Cross multiply
    7,152.06x = 10,720.14 × 2,765.88
  4. Step 4: Simplify right side
    7,152.06x = 29,650,620.82
  5. Step 5: Solve for x
    x = 29,650,620.82/7,152.06
  6. Step 6: Final answer
    x = 4,145.75

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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.