Home / 7,213.20-10,817.10-2,531.40

Finding the Fourth Proportional to 7,213.20, 10,817.10 and 2,531.40

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Solution

The fourth proportional to 7,213.20, 10,817.10 and 2,531.40 is: 3,796.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.20 : 10,817.10 = 2,531.40 : x
  2. Step 2: Convert to fraction form
    7,213.20/10,817.10 = 2,531.40/x
  3. Step 3: Cross multiply
    7,213.20x = 10,817.10 × 2,531.40
  4. Step 4: Simplify right side
    7,213.20x = 27,382,406.94
  5. Step 5: Solve for x
    x = 27,382,406.94/7,213.20
  6. Step 6: Final answer
    x = 3,796.15

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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.