Home / 7,146.23-10,720.35-2,764.13

Finding the Fourth Proportional to 7,146.23, 10,720.35 and 2,764.13

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Solution

The fourth proportional to 7,146.23, 10,720.35 and 2,764.13 is: 4,146.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.23 : 10,720.35 = 2,764.13 : x
  2. Step 2: Convert to fraction form
    7,146.23/10,720.35 = 2,764.13/x
  3. Step 3: Cross multiply
    7,146.23x = 10,720.35 × 2,764.13
  4. Step 4: Simplify right side
    7,146.23x = 29,632,387.44
  5. Step 5: Solve for x
    x = 29,632,387.44/7,146.23
  6. Step 6: Final answer
    x = 4,146.58

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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.