Home / 5,155.14-7,732.71-2,861.22

Finding the Fourth Proportional to 5,155.14, 7,732.71 and 2,861.22

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Solution

The fourth proportional to 5,155.14, 7,732.71 and 2,861.22 is: 4,291.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.14 : 7,732.71 = 2,861.22 : x
  2. Step 2: Convert to fraction form
    5,155.14/7,732.71 = 2,861.22/x
  3. Step 3: Cross multiply
    5,155.14x = 7,732.71 × 2,861.22
  4. Step 4: Simplify right side
    5,155.14x = 22,124,984.51
  5. Step 5: Solve for x
    x = 22,124,984.51/5,155.14
  6. Step 6: Final answer
    x = 4,291.83

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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.