Home / 7,520.56-11,278.64-2,255.36

Finding the Fourth Proportional to 7,520.56, 11,278.64 and 2,255.36

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Solution

The fourth proportional to 7,520.56, 11,278.64 and 2,255.36 is: 3,382.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.56 : 11,278.64 = 2,255.36 : x
  2. Step 2: Convert to fraction form
    7,520.56/11,278.64 = 2,255.36/x
  3. Step 3: Cross multiply
    7,520.56x = 11,278.64 × 2,255.36
  4. Step 4: Simplify right side
    7,520.56x = 25,437,406.20
  5. Step 5: Solve for x
    x = 25,437,406.20/7,520.56
  6. Step 6: Final answer
    x = 3,382.38

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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.