Home / 7,071.30-10,607.22-2,689.20

Finding the Fourth Proportional to 7,071.30, 10,607.22 and 2,689.20

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Solution

The fourth proportional to 7,071.30, 10,607.22 and 2,689.20 is: 4,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,071.30 : 10,607.22 = 2,689.20 : x
  2. Step 2: Convert to fraction form
    7,071.30/10,607.22 = 2,689.20/x
  3. Step 3: Cross multiply
    7,071.30x = 10,607.22 × 2,689.20
  4. Step 4: Simplify right side
    7,071.30x = 28,524,936.02
  5. Step 5: Solve for x
    x = 28,524,936.02/7,071.30
  6. Step 6: Final answer
    x = 4,033.90

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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.