Home / 7,520.19-11,280.16-2,589.72

Finding the Fourth Proportional to 7,520.19, 11,280.16 and 2,589.72

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Solution

The fourth proportional to 7,520.19, 11,280.16 and 2,589.72 is: 3,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.19 : 11,280.16 = 2,589.72 : x
  2. Step 2: Convert to fraction form
    7,520.19/11,280.16 = 2,589.72/x
  3. Step 3: Cross multiply
    7,520.19x = 11,280.16 × 2,589.72
  4. Step 4: Simplify right side
    7,520.19x = 29,212,455.96
  5. Step 5: Solve for x
    x = 29,212,455.96/7,520.19
  6. Step 6: Final answer
    x = 3,884.54

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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.