Home / 2,776.28-4,156.32-1,907.96

Finding the Fourth Proportional to 2,776.28, 4,156.32 and 1,907.96

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Solution

The fourth proportional to 2,776.28, 4,156.32 and 1,907.96 is: 2,856.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.28 : 4,156.32 = 1,907.96 : x
  2. Step 2: Convert to fraction form
    2,776.28/4,156.32 = 1,907.96/x
  3. Step 3: Cross multiply
    2,776.28x = 4,156.32 × 1,907.96
  4. Step 4: Simplify right side
    2,776.28x = 7,930,092.31
  5. Step 5: Solve for x
    x = 7,930,092.31/2,776.28
  6. Step 6: Final answer
    x = 2,856.37

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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.