Home / 7,240.20-10,861.80-2,310.21

Finding the Fourth Proportional to 7,240.20, 10,861.80 and 2,310.21

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Solution

The fourth proportional to 7,240.20, 10,861.80 and 2,310.21 is: 3,465.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.20 : 10,861.80 = 2,310.21 : x
  2. Step 2: Convert to fraction form
    7,240.20/10,861.80 = 2,310.21/x
  3. Step 3: Cross multiply
    7,240.20x = 10,861.80 × 2,310.21
  4. Step 4: Simplify right side
    7,240.20x = 25,093,038.98
  5. Step 5: Solve for x
    x = 25,093,038.98/7,240.20
  6. Step 6: Final answer
    x = 3,465.79

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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.