Home / 2,285.22-3,426-2,156.43

Finding the Fourth Proportional to 2,285.22, 3,426 and 2,156.43

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Solution

The fourth proportional to 2,285.22, 3,426 and 2,156.43 is: 3,232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.22 : 3,426 = 2,156.43 : x
  2. Step 2: Convert to fraction form
    2,285.22/3,426 = 2,156.43/x
  3. Step 3: Cross multiply
    2,285.22x = 3,426 × 2,156.43
  4. Step 4: Simplify right side
    2,285.22x = 7,387,929.18
  5. Step 5: Solve for x
    x = 7,387,929.18/2,285.22
  6. Step 6: Final answer
    x = 3,232.92

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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.