Home / 2,174.12-3,000.56-1,230.28

Finding the Fourth Proportional to 2,174.12, 3,000.56 and 1,230.28

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Solution

The fourth proportional to 2,174.12, 3,000.56 and 1,230.28 is: 1,697.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.12 : 3,000.56 = 1,230.28 : x
  2. Step 2: Convert to fraction form
    2,174.12/3,000.56 = 1,230.28/x
  3. Step 3: Cross multiply
    2,174.12x = 3,000.56 × 1,230.28
  4. Step 4: Simplify right side
    2,174.12x = 3,691,528.96
  5. Step 5: Solve for x
    x = 3,691,528.96/2,174.12
  6. Step 6: Final answer
    x = 1,697.94

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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.