Home / 5,115.66-7,673.91-2,154.96

Finding the Fourth Proportional to 5,115.66, 7,673.91 and 2,154.96

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Solution

The fourth proportional to 5,115.66, 7,673.91 and 2,154.96 is: 3,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.66 : 7,673.91 = 2,154.96 : x
  2. Step 2: Convert to fraction form
    5,115.66/7,673.91 = 2,154.96/x
  3. Step 3: Cross multiply
    5,115.66x = 7,673.91 × 2,154.96
  4. Step 4: Simplify right side
    5,115.66x = 16,536,969.09
  5. Step 5: Solve for x
    x = 16,536,969.09/5,115.66
  6. Step 6: Final answer
    x = 3,232.62

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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.