Home / 7,310.34-10,964.30-2,115

Finding the Fourth Proportional to 7,310.34, 10,964.30 and 2,115

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Solution

The fourth proportional to 7,310.34, 10,964.30 and 2,115 is: 3,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.34 : 10,964.30 = 2,115 : x
  2. Step 2: Convert to fraction form
    7,310.34/10,964.30 = 2,115/x
  3. Step 3: Cross multiply
    7,310.34x = 10,964.30 × 2,115
  4. Step 4: Simplify right side
    7,310.34x = 23,189,483.93
  5. Step 5: Solve for x
    x = 23,189,483.93/7,310.34
  6. Step 6: Final answer
    x = 3,172.15

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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.