Home / 3,174.30-4,376.37-2,177.85

Finding the Fourth Proportional to 3,174.30, 4,376.37 and 2,177.85

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Solution

The fourth proportional to 3,174.30, 4,376.37 and 2,177.85 is: 3,002.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.30 : 4,376.37 = 2,177.85 : x
  2. Step 2: Convert to fraction form
    3,174.30/4,376.37 = 2,177.85/x
  3. Step 3: Cross multiply
    3,174.30x = 4,376.37 × 2,177.85
  4. Step 4: Simplify right side
    3,174.30x = 9,531,077.40
  5. Step 5: Solve for x
    x = 9,531,077.40/3,174.30
  6. Step 6: Final answer
    x = 3,002.58

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1.5x scale

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.