Home / 7,145.30-10,717.50-2,214.56

Finding the Fourth Proportional to 7,145.30, 10,717.50 and 2,214.56

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Solution

The fourth proportional to 7,145.30, 10,717.50 and 2,214.56 is: 3,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.30 : 10,717.50 = 2,214.56 : x
  2. Step 2: Convert to fraction form
    7,145.30/10,717.50 = 2,214.56/x
  3. Step 3: Cross multiply
    7,145.30x = 10,717.50 × 2,214.56
  4. Step 4: Simplify right side
    7,145.30x = 23,734,546.80
  5. Step 5: Solve for x
    x = 23,734,546.80/7,145.30
  6. Step 6: Final answer
    x = 3,321.70

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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.