Home / 7,520.30-11,278.26-2,255.10

Finding the Fourth Proportional to 7,520.30, 11,278.26 and 2,255.10

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Solution

The fourth proportional to 7,520.30, 11,278.26 and 2,255.10 is: 3,381.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.30 : 11,278.26 = 2,255.10 : x
  2. Step 2: Convert to fraction form
    7,520.30/11,278.26 = 2,255.10/x
  3. Step 3: Cross multiply
    7,520.30x = 11,278.26 × 2,255.10
  4. Step 4: Simplify right side
    7,520.30x = 25,433,604.13
  5. Step 5: Solve for x
    x = 25,433,604.13/7,520.30
  6. Step 6: Final answer
    x = 3,381.99

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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.