Home / 7,310.70-10,960.65-3,147.30

Finding the Fourth Proportional to 7,310.70, 10,960.65 and 3,147.30

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Solution

The fourth proportional to 7,310.70, 10,960.65 and 3,147.30 is: 4,718.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,310.70 : 10,960.65 = 3,147.30 : x
  2. Step 2: Convert to fraction form
    7,310.70/10,960.65 = 3,147.30/x
  3. Step 3: Cross multiply
    7,310.70x = 10,960.65 × 3,147.30
  4. Step 4: Simplify right side
    7,310.70x = 34,496,453.75
  5. Step 5: Solve for x
    x = 34,496,453.75/7,310.70
  6. Step 6: Final answer
    x = 4,718.63

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1.5x scale

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.