Home / 2,086.05-3,130.16-1,355.97

Finding the Fourth Proportional to 2,086.05, 3,130.16 and 1,355.97

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Solution

The fourth proportional to 2,086.05, 3,130.16 and 1,355.97 is: 2,034.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.05 : 3,130.16 = 1,355.97 : x
  2. Step 2: Convert to fraction form
    2,086.05/3,130.16 = 1,355.97/x
  3. Step 3: Cross multiply
    2,086.05x = 3,130.16 × 1,355.97
  4. Step 4: Simplify right side
    2,086.05x = 4,244,396.28
  5. Step 5: Solve for x
    x = 4,244,396.28/2,086.05
  6. Step 6: Final answer
    x = 2,034.66

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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.