Home / 3,705.87-5,115.24-2,135.01

Finding the Fourth Proportional to 3,705.87, 5,115.24 and 2,135.01

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Solution

The fourth proportional to 3,705.87, 5,115.24 and 2,135.01 is: 2,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.87 : 5,115.24 = 2,135.01 : x
  2. Step 2: Convert to fraction form
    3,705.87/5,115.24 = 2,135.01/x
  3. Step 3: Cross multiply
    3,705.87x = 5,115.24 × 2,135.01
  4. Step 4: Simplify right side
    3,705.87x = 10,921,088.55
  5. Step 5: Solve for x
    x = 10,921,088.55/3,705.87
  6. Step 6: Final answer
    x = 2,946.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.