Home / 2,157.85-3,232.53-1,230.61

Finding the Fourth Proportional to 2,157.85, 3,232.53 and 1,230.61

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Solution

The fourth proportional to 2,157.85, 3,232.53 and 1,230.61 is: 1,843.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.85 : 3,232.53 = 1,230.61 : x
  2. Step 2: Convert to fraction form
    2,157.85/3,232.53 = 1,230.61/x
  3. Step 3: Cross multiply
    2,157.85x = 3,232.53 × 1,230.61
  4. Step 4: Simplify right side
    2,157.85x = 3,977,983.74
  5. Step 5: Solve for x
    x = 3,977,983.74/2,157.85
  6. Step 6: Final answer
    x = 1,843.49

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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.