Home / 7,240.78-10,861.26-2,310.40

Finding the Fourth Proportional to 7,240.78, 10,861.26 and 2,310.40

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Solution

The fourth proportional to 7,240.78, 10,861.26 and 2,310.40 is: 3,465.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.78 : 10,861.26 = 2,310.40 : x
  2. Step 2: Convert to fraction form
    7,240.78/10,861.26 = 2,310.40/x
  3. Step 3: Cross multiply
    7,240.78x = 10,861.26 × 2,310.40
  4. Step 4: Simplify right side
    7,240.78x = 25,093,855.10
  5. Step 5: Solve for x
    x = 25,093,855.10/7,240.78
  6. Step 6: Final answer
    x = 3,465.63

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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.