Home / 2,276.62-3,131.85-1,856.05

Finding the Fourth Proportional to 2,276.62, 3,131.85 and 1,856.05

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Solution

The fourth proportional to 2,276.62, 3,131.85 and 1,856.05 is: 2,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.62 : 3,131.85 = 1,856.05 : x
  2. Step 2: Convert to fraction form
    2,276.62/3,131.85 = 1,856.05/x
  3. Step 3: Cross multiply
    2,276.62x = 3,131.85 × 1,856.05
  4. Step 4: Simplify right side
    2,276.62x = 5,812,860.11
  5. Step 5: Solve for x
    x = 5,812,860.11/2,276.62
  6. Step 6: Final answer
    x = 2,553.29

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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.