Home / 7,516.80-11,272.32-2,898.72

Finding the Fourth Proportional to 7,516.80, 11,272.32 and 2,898.72

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Solution

The fourth proportional to 7,516.80, 11,272.32 and 2,898.72 is: 4,346.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,516.80 : 11,272.32 = 2,898.72 : x
  2. Step 2: Convert to fraction form
    7,516.80/11,272.32 = 2,898.72/x
  3. Step 3: Cross multiply
    7,516.80x = 11,272.32 × 2,898.72
  4. Step 4: Simplify right side
    7,516.80x = 32,675,299.43
  5. Step 5: Solve for x
    x = 32,675,299.43/7,516.80
  6. Step 6: Final answer
    x = 4,346.97

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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.