Home / 5,160.60-7,736.19-1,872.96

Finding the Fourth Proportional to 5,160.60, 7,736.19 and 1,872.96

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Solution

The fourth proportional to 5,160.60, 7,736.19 and 1,872.96 is: 2,807.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.60 : 7,736.19 = 1,872.96 : x
  2. Step 2: Convert to fraction form
    5,160.60/7,736.19 = 1,872.96/x
  3. Step 3: Cross multiply
    5,160.60x = 7,736.19 × 1,872.96
  4. Step 4: Simplify right side
    5,160.60x = 14,489,574.42
  5. Step 5: Solve for x
    x = 14,489,574.42/5,160.60
  6. Step 6: Final answer
    x = 2,807.73

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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.