Home / 2,774.91-4,155.82-1,455.51

Finding the Fourth Proportional to 2,774.91, 4,155.82 and 1,455.51

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Solution

The fourth proportional to 2,774.91, 4,155.82 and 1,455.51 is: 2,179.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.91 : 4,155.82 = 1,455.51 : x
  2. Step 2: Convert to fraction form
    2,774.91/4,155.82 = 1,455.51/x
  3. Step 3: Cross multiply
    2,774.91x = 4,155.82 × 1,455.51
  4. Step 4: Simplify right side
    2,774.91x = 6,048,833.93
  5. Step 5: Solve for x
    x = 6,048,833.93/2,774.91
  6. Step 6: Final answer
    x = 2,179.83

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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.