Home / 7,451.10-11,176.62-1,904.43

Finding the Fourth Proportional to 7,451.10, 11,176.62 and 1,904.43

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Solution

The fourth proportional to 7,451.10, 11,176.62 and 1,904.43 is: 2,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.10 : 11,176.62 = 1,904.43 : x
  2. Step 2: Convert to fraction form
    7,451.10/11,176.62 = 1,904.43/x
  3. Step 3: Cross multiply
    7,451.10x = 11,176.62 × 1,904.43
  4. Step 4: Simplify right side
    7,451.10x = 21,285,135.91
  5. Step 5: Solve for x
    x = 21,285,135.91/7,451.10
  6. Step 6: Final answer
    x = 2,856.64

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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.